diff --git a/apps/cli/src/commands/auth/logout.test.ts b/apps/cli/src/commands/auth/logout.test.ts
index c9acbef3..a527db4b 100644
--- a/apps/cli/src/commands/auth/logout.test.ts
+++ b/apps/cli/src/commands/auth/logout.test.ts
@@ -1,4 +1,4 @@
-import { loadConfig, removeSpace } from "@repo/config";
+import { loadConfig, removeAllSpaces, removeSpace } from "@repo/config";
 import consola from "consola";
 import { describe, expect, it, vi } from "vitest";
 import { parseCommand } from "@repo/test-utils";
@@ -6,6 +6,7 @@ import { parseCommand } from "@repo/test-utils";
 vi.mock("@repo/config", () => ({
   loadConfig: vi.fn(),
   removeSpace: vi.fn(),
+  removeAllSpaces: vi.fn(),
 }));
 
 vi.mock("consola", () => import("@repo/test-utils/mock-consola"));
@@ -75,4 +76,58 @@ describe("auth logout", () => {
     expect(removeSpace).toHaveBeenCalledWith("only.backlog.com");
     expect(consola.success).toHaveBeenCalledWith("Logged out of only.backlog.com.");
   });
+
+  describe("--all", () => {
+    it("logs out of all spaces", async () => {
+      vi.mocked(loadConfig).mockReturnValue({
+        spaces: [
+          {
+            host: "one.backlog.com",
+            auth: { method: "api-key" as const, apiKey: "key1" },
+          },
+          {
+            host: "two.backlog.com",
+            auth: { method: "api-key" as const, apiKey: "key2" },
+          },
+        ],
+        defaultSpace: "one.backlog.com",
+        aliases: {},
+      });
+
+      await parseCommand(() => import("./logout"), ["--all"]);
+
+      expect(removeAllSpaces).toHaveBeenCalled();
+      expect(consola.success).toHaveBeenCalledWith("Logged out of 2 space(s).");
+    });
+
+    it("shows message when no spaces are configured with --all", async () => {
+      vi.mocked(loadConfig).mockReturnValue({
+        spaces: [],
+        defaultSpace: undefined,
+        aliases: {},
+      });
+
+      await parseCommand(() => import("./logout"), ["--all"]);
+
+      expect(removeAllSpaces).not.toHaveBeenCalled();
+      expect(consola.info).toHaveBeenCalledWith("No spaces are currently authenticated.");
+    });
+
+    it("throws error when --all is used with --space", async () => {
+      vi.mocked(loadConfig).mockReturnValue({
+        spaces: [
+          {
+            host: "example.backlog.com",
+            auth: { method: "api-key" as const, apiKey: "key" },
+          },
+        ],
+        defaultSpace: undefined,
+        aliases: {},
+      });
+
+      await expect(
+        parseCommand(() => import("./logout"), ["--all", "--space", "example.backlog.com"]),
+      ).rejects.toThrow("Cannot use --all with --space.");
+    });
+  });
 });
diff --git a/apps/cli/src/commands/auth/logout.ts b/apps/cli/src/commands/auth/logout.ts
index 3fc7b76d..62310bb7 100644
--- a/apps/cli/src/commands/auth/logout.ts
+++ b/apps/cli/src/commands/auth/logout.ts
@@ -1,5 +1,5 @@
 import { UserError } from "@repo/cli-utils";
-import { loadConfig, removeSpace } from "@repo/config";
+import { loadConfig, removeAllSpaces, removeSpace } from "@repo/config";
 import consola from "consola";
 import { BeeCommand } from "../../lib/bee-command";
 import * as opt from "../../lib/common-options";
@@ -10,16 +10,36 @@ const logout = new BeeCommand("logout")
     `Removes stored credentials locally. Does not revoke API keys or OAuth tokens on the server.`,
   )
   .addOption(opt.space())
+  .option("--all", "Log out of all spaces")
   .examples([
     { description: "Select space via prompt", command: "bee auth logout" },
     {
       description: "Log out of a specific space",
       command: "bee auth logout -s xxx.backlog.com",
     },
+    {
+      description: "Log out of all spaces",
+      command: "bee auth logout --all",
+    },
   ])
   .action(async (opts) => {
+    if (opts.all && opts.space) {
+      throw new UserError("Cannot use --all with --space.");
+    }
+
     const config = loadConfig();
 
+    if (opts.all) {
+      if (config.spaces.length === 0) {
+        consola.info("No spaces are currently authenticated.");
+        return;
+      }
+
+      removeAllSpaces();
+      consola.success(`Logged out of ${config.spaces.length} space(s).`);
+      return;
+    }
+
     let hostname = opts.space;
     if (!hostname) {
       if (config.spaces.length === 0) {
diff --git a/packages/config/src/index.ts b/packages/config/src/index.ts
index 664453b6..e711f171 100644
--- a/packages/config/src/index.ts
+++ b/packages/config/src/index.ts
@@ -1,3 +1,3 @@
 export { loadConfig, updateConfig, writeConfig } from "./config";
-export { addSpace, findSpace, removeSpace, updateSpaceAuth } from "./space";
+export { addSpace, findSpace, removeAllSpaces, removeSpace, updateSpaceAuth } from "./space";
 export type { Rc, RcAuth, RcSpace } from "./schema";
diff --git a/packages/config/src/space.test.ts b/packages/config/src/space.test.ts
index a83763a1..c94e8f81 100644
--- a/packages/config/src/space.test.ts
+++ b/packages/config/src/space.test.ts
@@ -5,7 +5,8 @@ vi.mock("./config", () => ({
 }));
 
 const { updateConfig } = await import("./config");
-const { addSpace, findSpace, removeSpace, updateSpaceAuth } = await import("./space");
+const { addSpace, findSpace, removeAllSpaces, removeSpace, updateSpaceAuth } =
+  await import("./space");
 
 const mockUpdateConfig = vi.mocked(updateConfig);
 
@@ -92,6 +93,30 @@ describe("removeSpace", () => {
   });
 });
 
+describe("removeAllSpaces", () => {
+  it("removes all spaces and clears defaultSpace", () => {
+    const space1 = makeSpace("one.backlog.com");
+    const space2 = makeSpace("two.backlog.com");
+    setupUpdateConfig(makeConfig([space1, space2], "one.backlog.com"));
+
+    removeAllSpaces();
+
+    const result = mockUpdateConfig.mock.results[0]?.value;
+    expect(result.spaces).toEqual([]);
+    expect(result.defaultSpace).toBeUndefined();
+  });
+
+  it("works when no spaces exist", () => {
+    setupUpdateConfig(makeConfig([]));
+
+    removeAllSpaces();
+
+    const result = mockUpdateConfig.mock.results[0]?.value;
+    expect(result.spaces).toEqual([]);
+    expect(result.defaultSpace).toBeUndefined();
+  });
+});
+
 describe("updateSpaceAuth", () => {
   it("updates auth for an existing space", () => {
     const space = makeSpace("target.backlog.com");
diff --git a/packages/config/src/space.ts b/packages/config/src/space.ts
index 20eb2d0b..24e86037 100644
--- a/packages/config/src/space.ts
+++ b/packages/config/src/space.ts
@@ -22,6 +22,14 @@ const removeSpace = (host: string): void => {
   });
 };
 
+const removeAllSpaces = (): void => {
+  updateConfig((config) => ({
+    ...config,
+    spaces: [],
+    defaultSpace: undefined,
+  }));
+};
+
 const updateSpaceAuth = (host: string, auth: RcAuth): void => {
   updateConfig((config) => {
     const index = config.spaces.findIndex((space) => space.host === host);
@@ -56,4 +64,4 @@ const findSpace = (spaces: readonly RcSpace[], host: string): RcSpace | null =>
   return null;
 };
 
-export { addSpace, findSpace, removeSpace, updateSpaceAuth };
+export { addSpace, findSpace, removeAllSpaces, removeSpace, updateSpaceAuth };