diff --git a/CMakeLists.txt b/CMakeLists.txt
index abb3c34a11d..0512adf26fb 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -74,6 +74,15 @@ set(CMAKE_CXX_EXTENSIONS OFF)
 
 list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
 
+# Strip absolute paths from __FILE__ and std::source_location
+if(CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang")
+    add_compile_options("-fmacro-prefix-map=${CMAKE_SOURCE_DIR}/=")
+    
+    # Optional: If you also compile generated files in your build directory 
+    # and want them to be relative too:
+    add_compile_options("-fmacro-prefix-map=${CMAKE_BINARY_DIR}/=")
+endif()
+
 # Get version string in OPENROAD_VERSION
 if(NOT OPENROAD_VERSION)
   include(GetGitRevisionDescription)
diff --git a/src/mpl/test/cpp/CMakeLists.txt b/src/mpl/test/cpp/CMakeLists.txt
index ba4ae5b9b38..fa0a0ad2e06 100644
--- a/src/mpl/test/cpp/CMakeLists.txt
+++ b/src/mpl/test/cpp/CMakeLists.txt
@@ -14,7 +14,11 @@ set(TEST_LIBS
 
 add_executable(TestSnapper TestSnapper.cpp)
 target_link_libraries(TestSnapper ${TEST_LIBS})
-gtest_discover_tests(TestSnapper WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
+gtest_discover_tests(TestSnapper 
+  WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
+  PROPERTIES 
+    ENVIRONMENT "DISABLE_SOURCE_LINES=1"
+)
 
 add_executable(TestBlockMacroChannels TestBlockMacroChannels.cpp)
 target_link_libraries(TestBlockMacroChannels ${TEST_LIBS})
diff --git a/src/tst/src/fixture.cpp b/src/tst/src/fixture.cpp
index 045b9efc46a..0fe8a9b35cc 100644
--- a/src/tst/src/fixture.cpp
+++ b/src/tst/src/fixture.cpp
@@ -38,7 +38,7 @@ Fixture::Fixture()
     throw std::runtime_error("Could not create Runfiles object: " + error);
   }
 #endif
-
+  logger_.setSourceLinesVisible(false);
   std::call_once(init_sta_flag, []() { sta::initSta(); });
 
   db_ = utl::UniquePtrWithDeleter<odb::dbDatabase>(odb::dbDatabase::create(),
diff --git a/src/utl/include/utl/Logger.h b/src/utl/include/utl/Logger.h
index 1ad73789831..7f08d1d2c79 100644
--- a/src/utl/include/utl/Logger.h
+++ b/src/utl/include/utl/Logger.h
@@ -16,6 +16,7 @@
 #include <map>
 #include <memory>
 #include <ostream>
+#include <source_location>
 #include <sstream>
 #include <stack>
 #include <stdexcept>
@@ -25,6 +26,7 @@
 #include <utility>
 #include <vector>
 
+#include "spdlog/common.h"
 #include "spdlog/details/os.h"
 #include "spdlog/fmt/fmt.h"
 #include "spdlog/fmt/ostr.h"
@@ -98,6 +100,33 @@ enum ToolId
       SIZE  // the number of tools, do not put anything after this
 };
 
+// Captures the caller's source location alongside the log message
+struct LogMessage
+{
+  std::string message;
+  std::source_location loc;
+  bool source_lines_disabled;
+
+  LogMessage(const char* msg,
+             const std::source_location& l = std::source_location::current(),
+             bool source_lines_off = false)
+      : message(msg), loc(l), source_lines_disabled(source_lines_off)
+  {
+  }
+  LogMessage(const std::string& msg,
+             const std::source_location& l = std::source_location::current(),
+             bool source_lines_off = false)
+      : message(msg), loc(l), source_lines_disabled(source_lines_off)
+  {
+  }
+  LogMessage(std::string_view msg,
+             const std::source_location& l = std::source_location::current(),
+             bool source_lines_off = false)
+      : message(msg), loc(l), source_lines_disabled(source_lines_off)
+  {
+  }
+};
+
 class Logger
 {
  public:
@@ -128,47 +157,67 @@ class Logger
   template <typename... Args>
   void debug(ToolId tool,
              const char* group,
-             const std::string& message,
+             const LogMessage& log_message,
              const Args&... args)
   {
-    // Message counters do NOT apply to debug messages.
-    logger_->log(
-        spdlog::level::level_enum::debug,
-        FMT_RUNTIME("[{} {}-{}] " + message + spdlog::details::os::default_eol),
-        level_names[spdlog::level::level_enum::debug],
-        tool_names_[tool],
-        group,
-        args...);
+    auto formatted = fmt::format(FMT_RUNTIME(log_message.message), args...);
+    logger_->log(spdlog::level::level_enum::debug,
+                 "[{} {}-{}] {} [{}:{}]{}",
+                 level_names[spdlog::level::level_enum::debug],
+                 tool_names_[tool],
+                 group,
+                 formatted,
+                 log_message.loc.file_name(),
+                 log_message.loc.line(),
+                 spdlog::details::os::default_eol);
     logger_->flush();
   }
 
   template <typename... Args>
   void info(ToolId tool,
             int id,
-            const std::string& message,
+            const LogMessage& log_message,
             const Args&... args)
   {
-    log(tool, spdlog::level::level_enum::info, id, message, args...);
+    log(tool,
+        spdlog::level::level_enum::info,
+        id,
+        log_message.loc,
+        log_message.message,
+        log_message.source_lines_disabled,
+        args...);
   }
 
   template <typename... Args>
   void warn(ToolId tool,
             int id,
-            const std::string& message,
+            const LogMessage& log_message,
             const Args&... args)
   {
     warning_count_++;
-    log(tool, spdlog::level::level_enum::warn, id, message, args...);
+    log(tool,
+        spdlog::level::level_enum::warn,
+        id,
+        log_message.loc,
+        log_message.message,
+        log_message.source_lines_disabled,
+        args...);
   }
 
   template <typename... Args>
   __attribute__((noreturn)) void error(ToolId tool,
                                        int id,
-                                       const std::string& message,
+                                       LogMessage log_message,
                                        const Args&... args)
   {
     error_count_++;
-    log(tool, spdlog::level::err, id, message, args...);
+    log(tool,
+        spdlog::level::err,
+        id,
+        log_message.loc,
+        log_message.message,
+        log_message.source_lines_disabled,
+        args...);
     // Exception should be caught by swig error handler.
     throw std::runtime_error(fmt::format("{}-{:04}", tool_names_[tool], id));
   }
@@ -176,10 +225,16 @@ class Logger
   template <typename... Args>
   __attribute__((noreturn)) void critical(ToolId tool,
                                           int id,
-                                          const std::string& message,
+                                          LogMessage log_message,
                                           const Args&... args)
   {
-    log(tool, spdlog::level::level_enum::critical, id, message, args...);
+    log(tool,
+        spdlog::level::level_enum::critical,
+        id,
+        log_message.loc,
+        log_message.message,
+        log_message.source_lines_disabled,
+        args...);
     exit(EXIT_FAILURE);
   }
 
@@ -222,6 +277,8 @@ class Logger
     return (it != groups.end() && level <= it->second);
   }
 
+  void setSourceLinesVisible(bool visible) { source_lines_enabled_ = visible; };
+
   int getWarningCount() const { return warning_count_; }
 
   void startPrometheusEndpoint(uint16_t port);
@@ -278,7 +335,9 @@ class Logger
   void log(ToolId tool,
            spdlog::level::level_enum level,
            int id,
+           std::source_location loc,
            const std::string& message,
+           bool per_message_source_disabled,
            const Args&... args)
   {
     assert(id >= 0 && id <= max_message_id);
@@ -286,13 +345,27 @@ class Logger
     auto& counter = message_counters_[tool][id];
     auto count = counter++;
     if (count < max_message_print) {
-      logger_->log(level,
-                   FMT_RUNTIME("[{} {}-{:04d}] " + message
-                               + spdlog::details::os::default_eol),
-                   level_names[level],
-                   tool_names_[tool],
-                   id,
-                   args...);
+      if (source_lines_enabled_ && !per_message_source_disabled
+          && level >= spdlog::level::warn) {
+        auto formatted = fmt::format(FMT_RUNTIME(message), args...);
+        logger_->log(level,
+                     "[{} {}-{:04d}] {} [{}:{}]{}",
+                     level_names[level],
+                     tool_names_[tool],
+                     id,
+                     formatted,
+                     loc.file_name(),
+                     loc.line(),
+                     spdlog::details::os::default_eol);
+      } else {
+        logger_->log(level,
+                     FMT_RUNTIME("[{} {}-{:04d}] " + message
+                                 + spdlog::details::os::default_eol),
+                     level_names[level],
+                     tool_names_[tool],
+                     id,
+                     args...);
+      }
       return;
     }
 
@@ -373,6 +446,7 @@ class Logger
   bool debug_on_{false};
   std::atomic_int warning_count_{0};
   std::atomic_int error_count_{0};
+  bool source_lines_enabled_{true};
   static constexpr const char* level_names[]
       = {"TRACE", "DEBUG", "INFO", "WARNING", "ERROR", "CRITICAL", "OFF"};
   static constexpr const char* pattern_ = "%v";
diff --git a/src/utl/src/Logger.cpp b/src/utl/src/Logger.cpp
index 67242880f3c..a1ee35fd83c 100644
--- a/src/utl/src/Logger.cpp
+++ b/src/utl/src/Logger.cpp
@@ -53,6 +53,11 @@ Logger::Logger(const char* log_filename, const char* metrics_filename)
     addMetricsSink(metrics_filename);
   }
 
+  const char* disable_source_lines = std::getenv("DISABLE_SOURCE_LINES");
+  if (disable_source_lines != nullptr) {
+    source_lines_enabled_ = false;
+  }
+
   metrics_policies_ = MetricsPolicy::makeDefaultPolicies();
 
   for (auto& counters : message_counters_) {
diff --git a/src/utl/src/Logger.i b/src/utl/src/Logger.i
index c1f418266ee..7bba8083a3d 100644
--- a/src/utl/src/Logger.i
+++ b/src/utl/src/Logger.i
@@ -32,7 +32,9 @@ using ord::getLogger;
 %include "../../Exception.i"
 %include "stdint.i"
 %import <std_string.i>
-
+%ignore utl::error(utl::ToolId, int, const char*, std::source_location);
+%ignore utl::warn(utl::ToolId, int, const char*, std::source_location);
+%ignore utl::critical(utl::ToolId, int, const char*, std::source_location);
 %include "LoggerCommon.h"
 
 %inline %{
@@ -105,6 +107,18 @@ void startPrometheusEndpoint(uint16_t port)
   logger->startPrometheusEndpoint(port);
 }
 
+void setSourceLinesOff()
+{
+  utl::Logger* logger = ord::getLogger();
+  logger->setSourceLinesVisible(false);
+}
+
+void setSourceLinesOn()
+{
+  utl::Logger* logger = ord::getLogger();
+  logger->setSourceLinesVisible(true);
+}
+
 } // namespace
 
 %} // inline
diff --git a/src/utl/src/LoggerCommon.cpp b/src/utl/src/LoggerCommon.cpp
index 34c55e8fbbd..11f63b1bca7 100644
--- a/src/utl/src/LoggerCommon.cpp
+++ b/src/utl/src/LoggerCommon.cpp
@@ -4,6 +4,7 @@
 #include "LoggerCommon.h"
 
 #include <cstdint>
+#include <source_location>
 #include <string>
 
 #include "utl/Logger.h"
@@ -38,22 +39,28 @@ void info(utl::ToolId tool, int id, const char* msg)
   logger->info(tool, id, "{}", msg);
 }
 
-void warn(utl::ToolId tool, int id, const char* msg)
+void warn(utl::ToolId tool, int id, const char* msg, std::source_location loc)
 {
   Logger* logger = getLogger();
-  logger->warn(tool, id, "{}", msg);
+  logger->warn(
+      tool, id, utl::LogMessage{"{}", loc, /*source_lines_off=*/true}, msg);
 }
 
-void error(utl::ToolId tool, int id, const char* msg)
+void error(utl::ToolId tool, int id, const char* msg, std::source_location loc)
 {
   Logger* logger = getLogger();
-  logger->error(tool, id, "{}", msg);
+  logger->error(
+      tool, id, utl::LogMessage{"{}", loc, /*source_lines_off=*/true}, msg);
 }
 
-void critical(utl::ToolId tool, int id, const char* msg)
+void critical(utl::ToolId tool,
+              int id,
+              const char* msg,
+              std::source_location loc)
 {
   Logger* logger = getLogger();
-  logger->critical(tool, id, "{}", msg);
+  logger->critical(
+      tool, id, utl::LogMessage{"{}", loc, /*source_lines_off=*/true}, msg);
 }
 
 void open_metrics(const char* metrics_filename)
diff --git a/src/utl/src/LoggerCommon.h b/src/utl/src/LoggerCommon.h
index 4953fb46c40..609a3cec3c1 100644
--- a/src/utl/src/LoggerCommon.h
+++ b/src/utl/src/LoggerCommon.h
@@ -2,6 +2,7 @@
 // Copyright (c) 2022-2025, The OpenROAD Authors
 
 #include <cstdint>
+#include <source_location>
 #include <string>
 
 #include "utl/Logger.h"
@@ -10,9 +11,18 @@ namespace utl {
 
 void report(const char* msg);
 void info(utl::ToolId tool, int id, const char* msg);
-void warn(utl::ToolId tool, int id, const char* msg);
-void error(utl::ToolId tool, int id, const char* msg);
-void critical(utl::ToolId tool, int id, const char* msg);
+void warn(utl::ToolId tool,
+          int id,
+          const char* msg,
+          std::source_location loc = std::source_location::current());
+void error(utl::ToolId tool,
+           int id,
+           const char* msg,
+           std::source_location loc = std::source_location::current());
+void critical(utl::ToolId tool,
+              int id,
+              const char* msg,
+              std::source_location loc = std::source_location::current());
 void open_metrics(const char* metrics_filename);
 void close_metrics(const char* metrics_filename);
 void metric(const char* metric, const char* value);
diff --git a/test/helpers.py b/test/helpers.py
index 256de723283..23718017e28 100644
--- a/test/helpers.py
+++ b/test/helpers.py
@@ -97,6 +97,7 @@ def make_design(tech):
     if os.environ.get("TEST_SRCDIR", ""):
         tech.thisown = False
     logger = design.getLogger()
+    logger.setSourceLinesVisible(False)
 
     # Reading DEF file
     logger.suppressMessage(utl.ODB, 127)
diff --git a/test/helpers.tcl b/test/helpers.tcl
index cf4fbed4606..1a4be025db8 100644
--- a/test/helpers.tcl
+++ b/test/helpers.tcl
@@ -1,4 +1,5 @@
 # Helper functions common to multiple regressions.
+utl::setSourceLinesOff
 
 if { [info exists ::env(TEST_TMPDIR)] } {
   set test_dir $::env(TEST_TMPDIR)
diff --git a/test/regression.bzl b/test/regression.bzl
index 01a0f1b0728..d55d5bf45d9 100644
--- a/test/regression.bzl
+++ b/test/regression.bzl
@@ -32,6 +32,7 @@ export REGRESSION_TEST={REGRESSION_TEST}
 export TEST_GOLDEN_FILE={TEST_GOLDEN_FILE}
 export TEST_CHECK_LOG={TEST_CHECK_LOG}
 export TEST_CHECK_PASSFAIL={TEST_CHECK_PASSFAIL}
+export DISABLE_SOURCE_LINES=1
 export TEST_EXPECTED_EXIT_CODE={TEST_EXPECTED_EXIT_CODE}
 exec "{bazel_test_sh}" "$@"
 """.format(
diff --git a/test/regression_test.sh b/test/regression_test.sh
index d7d5ae6cfcc..5a77af19b31 100755
--- a/test/regression_test.sh
+++ b/test/regression_test.sh
@@ -5,6 +5,7 @@ set -o pipefail
 
 RESULTS_DIR="${RESULTS_DIR:-results}"
 LOG_FILE="${RESULTS_DIR}/$TEST_NAME-$TEST_EXT.log"
+export DISABLE_SOURCE_LINES=1
 
 mkdir -p ${RESULTS_DIR}