diff --git a/example/lib/presentation/samples/line/line_chart_sample2.dart b/example/lib/presentation/samples/line/line_chart_sample2.dart
index 7535242e8..70f0464d3 100644
--- a/example/lib/presentation/samples/line/line_chart_sample2.dart
+++ b/example/lib/presentation/samples/line/line_chart_sample2.dart
@@ -146,6 +146,8 @@ class _LineChartSample2State extends State<LineChartSample2> {
       maxY: 6,
       lineBarsData: [
         LineChartBarData(
+          strokeColor: Colors.red,
+          strokeWidth: 3,
           spots: const [
             FlSpot(0, 3),
             FlSpot(2.6, 2),
diff --git a/lib/src/chart/line_chart/line_chart_data.dart b/lib/src/chart/line_chart/line_chart_data.dart
index e42be381c..9666f66f8 100644
--- a/lib/src/chart/line_chart/line_chart_data.dart
+++ b/lib/src/chart/line_chart/line_chart_data.dart
@@ -251,6 +251,8 @@ class LineChartBarData with EquatableMixin {
     this.isStrokeJoinRound = false,
     BarAreaData? belowBarData,
     BarAreaData? aboveBarData,
+    this.strokeColor,
+    this.strokeWidth = 0,
     this.dotData = const FlDotData(),
     this.errorIndicatorData =
         const FlErrorIndicatorData<LineChartSpotErrorRangeCallbackInput>(),
@@ -346,6 +348,14 @@ class LineChartBarData with EquatableMixin {
   /// otherwise it draws line with hard edges.
   final bool isCurved;
 
+  /// Optional border color for the line.
+  /// Useful for improving visibility when lines overlap.
+  final Color? strokeColor;
+
+  /// Width of the border around the line.
+  /// Default is 0 (no border).
+  final double strokeWidth;
+
   /// If [isCurved] is true, it determines smoothness of the curved edges.
   final double curveSmoothness;
 
@@ -427,6 +437,8 @@ class LineChartBarData with EquatableMixin {
         isStepLineChart: b.isStepLineChart,
         lineChartStepData:
             LineChartStepData.lerp(a.lineChartStepData, b.lineChartStepData, t),
+        strokeColor: Color.lerp(a.strokeColor, b.strokeColor, t),
+        strokeWidth: lerpDouble(a.strokeWidth, b.strokeWidth, t)!,
       );
 
   /// Copies current [LineChartBarData] to a new [LineChartBarData],
@@ -454,6 +466,8 @@ class LineChartBarData with EquatableMixin {
     Shadow? shadow,
     bool? isStepLineChart,
     LineChartStepData? lineChartStepData,
+    Color? strokeColor,
+    double? strokeWidth,
   }) =>
       LineChartBarData(
         spots: spots ?? this.spots,
@@ -479,6 +493,8 @@ class LineChartBarData with EquatableMixin {
         shadow: shadow ?? this.shadow,
         isStepLineChart: isStepLineChart ?? this.isStepLineChart,
         lineChartStepData: lineChartStepData ?? this.lineChartStepData,
+        strokeColor: strokeColor ?? this.strokeColor,
+        strokeWidth: strokeWidth ?? this.strokeWidth,
       );
 
   /// Used for equality check, see [EquatableMixin].
@@ -505,6 +521,8 @@ class LineChartBarData with EquatableMixin {
         shadow,
         isStepLineChart,
         lineChartStepData,
+        strokeColor,
+        strokeWidth,
       ];
 }
 
diff --git a/lib/src/chart/line_chart/line_chart_painter.dart b/lib/src/chart/line_chart/line_chart_painter.dart
index 3932f6d3c..2a4cf33fc 100644
--- a/lib/src/chart/line_chart/line_chart_painter.dart
+++ b/lib/src/chart/line_chart/line_chart_painter.dart
@@ -281,6 +281,18 @@ class LineChartPainter extends AxisChartPainter<LineChartData> {
         barData,
       );
       drawBarShadow(canvasWrapper, barPath, barData);
+      if (barData.strokeColor != null && barData.strokeWidth > 0) {
+        final borderPaint = Paint()
+          ..color = barData.strokeColor!
+          ..strokeWidth = barData.barWidth + (barData.strokeWidth * 2)
+          ..style = PaintingStyle.stroke
+          ..strokeCap =
+              barData.isStrokeCapRound ? StrokeCap.round : StrokeCap.butt
+          ..strokeJoin =
+              barData.isStrokeJoinRound ? StrokeJoin.round : StrokeJoin.miter;
+
+        canvasWrapper.canvas.drawPath(barPath, borderPaint);
+      }
       drawBar(canvasWrapper, barPath, barData, holder);
     }
   }