diff --git a/.changeset/warm-clowns-visit.md b/.changeset/warm-clowns-visit.md
new file mode 100644
index 00000000000..bf7d49908af
--- /dev/null
+++ b/.changeset/warm-clowns-visit.md
@@ -0,0 +1,5 @@
+---
+"wrangler": patch
+---
+
+Support the deletion of secrets with complex names
diff --git a/packages/wrangler/src/__tests__/secret.test.ts b/packages/wrangler/src/__tests__/secret.test.ts
index 6a5a7623b29..45d7c58aea3 100644
--- a/packages/wrangler/src/__tests__/secret.test.ts
+++ b/packages/wrangler/src/__tests__/secret.test.ts
@@ -563,16 +563,15 @@ describe("wrangler secret", () => {
 			msw.use(
 				http.delete(
 					`*/accounts/:accountId/workers/${servicesOrScripts}/:scriptName${environment}/secrets/:secretName`,
-					({ params }) => {
+					({ request, params }) => {
 						expect(params.accountId).toEqual("some-account-id");
 						expect(params.scriptName).toEqual(
 							legacyEnv && env ? `script-name-${env}` : "script-name"
 						);
-						if (!legacyEnv) {
-							if (env) {
-								expect(params.secretName).toEqual(input.secretName);
-							}
-						}
+						expect(params.secretName).toEqual(input.secretName);
+						expect(
+							new URL(request.url).searchParams.get("url_encoded")
+						).toEqual("true");
 						return HttpResponse.json(createFetchResult(null));
 					},
 					{ once: true }
@@ -616,6 +615,23 @@ describe("wrangler secret", () => {
 			expect(std.err).toMatchInlineSnapshot(`""`);
 		});
 
+		it("should delete a secret which name includes special characters", async () => {
+			mockDeleteRequest({ scriptName: "script-name", secretName: "the/key" });
+			mockConfirm({
+				text: "Are you sure you want to permanently delete the secret the/key on the Worker script-name?",
+				result: true,
+			});
+			await runWrangler("secret delete the/key --name script-name");
+			expect(std.out).toMatchInlineSnapshot(`
+				"
+				 ⛅️ wrangler x.x.x
+				──────────────────
+				🌀 Deleting the secret the/key on the Worker script-name
+				✨ Success! Deleted secret the/key"
+			`);
+			expect(std.err).toMatchInlineSnapshot(`""`);
+		});
+
 		it("should delete a secret: legacy envs", async () => {
 			mockDeleteRequest(
 				{ scriptName: "script-name", secretName: "the-key" },
diff --git a/packages/wrangler/src/secret/index.ts b/packages/wrangler/src/secret/index.ts
index a03b0d7854a..099732875d7 100644
--- a/packages/wrangler/src/secret/index.ts
+++ b/packages/wrangler/src/secret/index.ts
@@ -318,7 +318,14 @@ export const secretDeleteCommand = createCommand({
 					? `/accounts/${accountId}/workers/scripts/${scriptName}/secrets`
 					: `/accounts/${accountId}/workers/services/${scriptName}/environments/${args.env}/secrets`;
 
-			await fetchResult(config, `${url}/${args.key}`, { method: "DELETE" });
+			await fetchResult(
+				config,
+				`${url}/${encodeURIComponent(args.key)}`,
+				{ method: "DELETE" },
+				new URLSearchParams({
+					url_encoded: "true",
+				})
+			);
 			metrics.sendMetricsEvent("delete encrypted variable", {
 				sendMetrics: config.send_metrics,
 			});