diff --git a/packages/web/src/components/layout/Sidebar.tsx b/packages/web/src/components/layout/Sidebar.tsx
index 97c9d62..73e1c03 100644
--- a/packages/web/src/components/layout/Sidebar.tsx
+++ b/packages/web/src/components/layout/Sidebar.tsx
@@ -281,15 +281,18 @@ export function Sidebar() {
 							transition={{ duration: 0.22, ease: "easeInOut" }}
 							className="overflow-hidden"
 						>
-							{/* Workspace ID label */}
+							{/* Workspace ID — links back to this workspace's overview */}
 							<div className="px-3 pt-2 pb-1 hidden sm:block">
-								<p
-									className="text-xs font-mono truncate"
-									style={{ color: "var(--text-4)" }}
+								<Link
+									to={"/workspaces/$workspaceId" as never}
+									params={{ workspaceId: activeWorkspaceId } as never}
+									aria-label={`Workspace overview: ${mask(activeWorkspaceId)}`}
 									title={mask(activeWorkspaceId)}
+									className="block text-xs font-mono truncate rounded-md transition-colors hover:text-[color:var(--accent-text)] focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-[var(--accent)] focus-visible:ring-offset-2 focus-visible:ring-offset-[var(--sidebar-bg)]"
+									style={{ color: "var(--text-4)" }}
 								>
 									{mask(activeWorkspaceId)}
-								</p>
+								</Link>
 							</div>
 
 							{/* Section links — indented */}
diff --git a/packages/web/src/test/sidebar-workspace-link.test.tsx b/packages/web/src/test/sidebar-workspace-link.test.tsx
new file mode 100644
index 0000000..69a6e31
--- /dev/null
+++ b/packages/web/src/test/sidebar-workspace-link.test.tsx
@@ -0,0 +1,130 @@
+import { QueryClient, QueryClientProvider } from "@tanstack/react-query";
+import { createMemoryHistory, createRouter, RouterProvider } from "@tanstack/react-router";
+import { render, screen, within } from "@testing-library/react";
+import userEvent from "@testing-library/user-event";
+import { afterEach, describe, expect, it, vi } from "vitest";
+import { DemoProvider } from "@/context/DemoContext";
+import { MetadataProvider } from "@/context/MetadataContext";
+import { saveStore } from "@/lib/config";
+import { routeTree } from "@/routeTree.gen";
+
+const { httpFetch } = vi.hoisted(() => ({ httpFetch: vi.fn() }));
+vi.mock("@/lib/http", () => ({ httpFetch }));
+
+const WORKSPACE_ID = "ws-alpha";
+const INSTANCE = {
+	id: "inst-1",
+	name: "Local",
+	baseUrl: "http://localhost:8000",
+	token: "",
+};
+
+function jsonResponse(body: unknown = { items: [], total: 0, page: 1, size: 1, pages: 0 }) {
+	return new Response(JSON.stringify(body), {
+		status: 200,
+		headers: { "Content-Type": "application/json" },
+	});
+}
+
+function seedApp() {
+	saveStore({ instances: [INSTANCE], activeId: INSTANCE.id });
+	httpFetch.mockResolvedValue(jsonResponse());
+}
+
+function renderAt(initialPath: string) {
+	const router = createRouter({
+		routeTree,
+		history: createMemoryHistory({ initialEntries: [initialPath] }),
+	});
+	const qc = new QueryClient({ defaultOptions: { queries: { retry: false } } });
+	return {
+		router,
+		...render(
+			<QueryClientProvider client={qc}>
+				<DemoProvider>
+					<MetadataProvider>
+						{/* biome-ignore lint/suspicious/noExplicitAny: test router type */}
+						<RouterProvider router={router as any} />
+					</MetadataProvider>
+				</DemoProvider>
+			</QueryClientProvider>,
+		),
+	};
+}
+
+function sidebarWorkspaceLink() {
+	return within(screen.getByRole("complementary")).getByRole("link", {
+		name: /workspace overview/i,
+	});
+}
+
+describe("sidebar workspace overview link", () => {
+	afterEach(() => {
+		httpFetch.mockReset();
+		localStorage.clear();
+	});
+
+	it("exposes the workspace label as a link from a nested workspace page", async () => {
+		seedApp();
+		renderAt(`/workspaces/${WORKSPACE_ID}/peers`);
+		await screen.findByRole("heading", { name: "Peers" });
+		expect(sidebarWorkspaceLink()).toHaveAttribute("href", `/workspaces/${WORKSPACE_ID}`);
+	});
+
+	it("navigates to the workspace overview when the sidebar label is activated", async () => {
+		const user = userEvent.setup();
+		seedApp();
+		renderAt(`/workspaces/${WORKSPACE_ID}/peers`);
+		await user.click(await screen.findByRole("link", { name: /workspace overview/i }));
+		expect(await screen.findByText("Workspace overview")).toBeInTheDocument();
+	});
+
+	it("keeps the real workspace id in the link href when demo mode is on", async () => {
+		localStorage.setItem("openconcho:demo", "true");
+		seedApp();
+		renderAt(`/workspaces/${WORKSPACE_ID}/peers`);
+		expect(await screen.findByRole("link", { name: /workspace overview/i })).toHaveAttribute(
+			"href",
+			`/workspaces/${WORKSPACE_ID}`,
+		);
+	});
+
+	it("masks the visible workspace identifier in demo mode", async () => {
+		localStorage.setItem("openconcho:demo", "true");
+		seedApp();
+		renderAt(`/workspaces/${WORKSPACE_ID}/peers`);
+		expect(await screen.findByRole("link", { name: /workspace overview/i })).toHaveTextContent(
+			"*".repeat(WORKSPACE_ID.length),
+		);
+	});
+
+	it("puts the masked identifier in the tooltip, not the raw id, in demo mode", async () => {
+		localStorage.setItem("openconcho:demo", "true");
+		seedApp();
+		renderAt(`/workspaces/${WORKSPACE_ID}/peers`);
+		expect(await screen.findByRole("link", { name: /workspace overview/i })).toHaveAttribute(
+			"title",
+			"*".repeat(WORKSPACE_ID.length),
+		);
+	});
+
+	it("does not render a workspace overview link outside workspace routes", async () => {
+		seedApp();
+		renderAt("/");
+		await screen.findByRole("link", { name: /dashboard/i });
+		expect(
+			within(screen.getByRole("complementary")).queryByRole("link", {
+				name: /workspace overview/i,
+			}),
+		).not.toBeInTheDocument();
+	});
+
+	it("leaves the Peers contextual nav link working", async () => {
+		seedApp();
+		renderAt(`/workspaces/${WORKSPACE_ID}/sessions`);
+		expect(await screen.findByRole("link", { name: /^peers$/i })).toHaveAttribute(
+			"href",
+			`/workspaces/${WORKSPACE_ID}/peers`,
+		);
+	});
+});