diff --git a/packages/quicktype-core/src/language/Swift/SwiftRenderer.ts b/packages/quicktype-core/src/language/Swift/SwiftRenderer.ts
index a47b189df1..d6b2b95e11 100644
--- a/packages/quicktype-core/src/language/Swift/SwiftRenderer.ts
+++ b/packages/quicktype-core/src/language/Swift/SwiftRenderer.ts
@@ -386,8 +386,7 @@ export class SwiftRenderer extends ConvenienceRenderer {
 
         if (
             this._options.sendable &&
-            (!this._options.mutableProperties || !isClass) &&
-            !this._options.objcSupport
+            (!this._options.mutableProperties || !isClass)
         ) {
             protocols.push("Sendable");
         }
@@ -501,7 +500,11 @@ export class SwiftRenderer extends ConvenienceRenderer {
         const isClass = this._options.useClasses || this.isCycleBreakerType(c);
         const structOrClass = isClass ? "class" : "struct";
         const finalPrefix =
-            isClass && this._options.finalClasses ? "final " : "";
+            isClass &&
+            (this._options.finalClasses ||
+                (this._options.sendable && !this._options.mutableProperties))
+                ? "final "
+                : "";
 
         if (isClass && this._options.objcSupport) {
             // [Michael Fey (@MrRooni), 2019-4-24] Swift 5 or greater, must come before the access declaration for the class.
diff --git a/test/fixtures.ts b/test/fixtures.ts
index b7ec881474..9485c15c8d 100644
--- a/test/fixtures.ts
+++ b/test/fixtures.ts
@@ -1647,6 +1647,10 @@ export const allFixtures: Fixture[] = [
     new JSONFixture(languages.PythonLanguage),
     new JSONFixture(languages.ElmLanguage),
     new JSONFixture(languages.SwiftLanguage),
+    new JSONFixture(
+        languages.SwiftSendableObjectiveCSupportLanguage,
+        "swift-sendable-objective-c",
+    ),
     new JSONFixture(languages.ObjectiveCLanguage),
     new JSONFixture(languages.TypeScriptLanguage),
     new JSONFixture(languages.TypeScriptZodLanguage),
diff --git a/test/fixtures/swift/verify-sendable.cjs b/test/fixtures/swift/verify-sendable.cjs
new file mode 100644
index 0000000000..bd427bf97c
--- /dev/null
+++ b/test/fixtures/swift/verify-sendable.cjs
@@ -0,0 +1,37 @@
+const fs = require("fs");
+
+const source = fs.readFileSync("quicktype.swift", "utf8");
+const declarations = source
+    .split("\n")
+    .filter((line) =>
+        /^(?:@objcMembers )?(?:final )?(?:class|struct|enum) /.test(line),
+    );
+
+if (declarations.length === 0) {
+    throw new Error("No generated type declarations found");
+}
+
+if (!declarations.some((line) => line.startsWith("enum "))) {
+    throw new Error("No generated enum declaration found");
+}
+
+if (
+    !declarations.some(
+        (line) => line.includes("class ") || line.startsWith("struct "),
+    )
+) {
+    throw new Error("No generated class or struct declaration found");
+}
+
+for (const declaration of declarations) {
+    if (!declaration.includes("Sendable")) {
+        throw new Error(`Generated type is not Sendable: ${declaration}`);
+    }
+
+    if (
+        declaration.includes("class ") &&
+        !declaration.startsWith("@objcMembers final class ")
+    ) {
+        throw new Error(`Generated Sendable class is not final: ${declaration}`);
+    }
+}
diff --git a/test/languages.ts b/test/languages.ts
index 7f80f5e3b1..f9b81522ea 100644
--- a/test/languages.ts
+++ b/test/languages.ts
@@ -945,6 +945,24 @@ export const SwiftLanguage: Language = {
     sourceFiles: ["src/language/Swift/index.ts"],
 };
 
+export const SwiftSendableObjectiveCSupportLanguage: Language = {
+    ...SwiftLanguage,
+    compileCommand: "node verify-sendable.cjs",
+    diffViaSchema: false,
+    includeJSON: ["pokedex.json"],
+    rendererOptions: {
+        ...SwiftLanguage.rendererOptions,
+        sendable: "true",
+        "struct-or-class": "class",
+        "objective-c-support": "true",
+    },
+    quickTestRendererOptions: [
+        ["pokedex.json", { "struct-or-class": "struct" }],
+    ],
+    runCommand: undefined,
+    skipMiscJSON: true,
+};
+
 export const ObjectiveCLanguage: Language = {
     name: "objective-c",
     base: "test/fixtures/objective-c",