diff --git a/types/node/process.d.ts b/types/node/process.d.ts
index 67a2705010637e..b3082eb7132f6b 100644
--- a/types/node/process.d.ts
+++ b/types/node/process.d.ts
@@ -1826,6 +1826,11 @@ declare module "node:process" {
                  * @param args Additional arguments to pass when invoking the `callback`
                  */
                 nextTick(callback: Function, ...args: any[]): void;
+                /**
+                 * The process.noDeprecation property indicates whether the --no-deprecation flag is set on the current Node.js process.
+                 * See the documentation for the ['warning' event](https://nodejs.org/docs/latest/api/process.html#event-warning) and the [emitWarning()](https://nodejs.org/docs/latest/api/process.html#processemitwarningwarning-type-code-ctor) method for more information about this flag's behavior.
+                 */
+                noDeprecation?: boolean;
                 /**
                  * This API is available through the [--permission](https://nodejs.org/api/cli.html#--permission) flag.
                  *
diff --git a/types/node/v20/process.d.ts b/types/node/v20/process.d.ts
index 8e9df01dc36e0f..b4bf98992defbe 100644
--- a/types/node/v20/process.d.ts
+++ b/types/node/v20/process.d.ts
@@ -1637,6 +1637,11 @@ declare module "process" {
                  * @param args Additional arguments to pass when invoking the `callback`
                  */
                 nextTick(callback: Function, ...args: any[]): void;
+                /**
+                 * The process.noDeprecation property indicates whether the --no-deprecation flag is set on the current Node.js process.
+                 * See the documentation for the ['warning' event](https://nodejs.org/docs/latest/api/process.html#event-warning) and the [emitWarning()](https://nodejs.org/docs/latest/api/process.html#processemitwarningwarning-type-code-ctor) method for more information about this flag's behavior.
+                 */
+                noDeprecation?: boolean;
                 /**
                  * This API is available through the [--experimental-permission](https://nodejs.org/api/cli.html#--experimental-permission) flag.
                  *
diff --git a/types/node/v20/test/process.ts b/types/node/v20/test/process.ts
index 45a323586a054e..044dcaab6b0421 100644
--- a/types/node/v20/test/process.ts
+++ b/types/node/v20/test/process.ts
@@ -164,6 +164,10 @@ process.env.TZ = "test";
     process.getActiveResourcesInfo(); // $ExpectType string[]
 }
 
+{
+    process.noDeprecation; // $ExpectType boolean | undefined
+}
+
 {
     process.permission.has("fs.read"); // $ExpectType boolean
     process.permission.has("fs.read", "./README.md"); // $ExpectType boolean
diff --git a/types/node/v22/process.d.ts b/types/node/v22/process.d.ts
index 368da9d398d291..b761ec170f5edd 100644
--- a/types/node/v22/process.d.ts
+++ b/types/node/v22/process.d.ts
@@ -1705,6 +1705,11 @@ declare module "process" {
                  * @param args Additional arguments to pass when invoking the `callback`
                  */
                 nextTick(callback: Function, ...args: any[]): void;
+                /**
+                 * The process.noDeprecation property indicates whether the --no-deprecation flag is set on the current Node.js process.
+                 * See the documentation for the ['warning' event](https://nodejs.org/docs/latest/api/process.html#event-warning) and the [emitWarning()](https://nodejs.org/docs/latest/api/process.html#processemitwarningwarning-type-code-ctor) method for more information about this flag's behavior.
+                 */
+                noDeprecation?: boolean;
                 /**
                  * This API is available through the [--permission](https://nodejs.org/api/cli.html#--permission) flag.
                  *
diff --git a/types/node/v22/test/process.ts b/types/node/v22/test/process.ts
index 941800ba2024f6..a87700e8e4be29 100644
--- a/types/node/v22/test/process.ts
+++ b/types/node/v22/test/process.ts
@@ -165,6 +165,10 @@ process.env.TZ = "test";
     process.getActiveResourcesInfo(); // $ExpectType string[]
 }
 
+{
+    process.noDeprecation; // $ExpectType boolean | undefined
+}
+
 {
     process.permission.has("fs.read"); // $ExpectType boolean
     process.permission.has("fs.read", "./README.md"); // $ExpectType boolean
diff --git a/types/node/v24/process.d.ts b/types/node/v24/process.d.ts
index a49d2bd68cdb0b..c1108661abb1d3 100644
--- a/types/node/v24/process.d.ts
+++ b/types/node/v24/process.d.ts
@@ -1704,6 +1704,11 @@ declare module "process" {
                  * @param args Additional arguments to pass when invoking the `callback`
                  */
                 nextTick(callback: Function, ...args: any[]): void;
+                /**
+                 * The process.noDeprecation property indicates whether the --no-deprecation flag is set on the current Node.js process.
+                 * See the documentation for the ['warning' event](https://nodejs.org/docs/latest/api/process.html#event-warning) and the [emitWarning()](https://nodejs.org/docs/latest/api/process.html#processemitwarningwarning-type-code-ctor) method for more information about this flag's behavior.
+                 */
+                noDeprecation?: boolean;
                 /**
                  * This API is available through the [--permission](https://nodejs.org/api/cli.html#--permission) flag.
                  *
diff --git a/types/node/v24/test/process.ts b/types/node/v24/test/process.ts
index 941800ba2024f6..a87700e8e4be29 100644
--- a/types/node/v24/test/process.ts
+++ b/types/node/v24/test/process.ts
@@ -165,6 +165,10 @@ process.env.TZ = "test";
     process.getActiveResourcesInfo(); // $ExpectType string[]
 }
 
+{
+    process.noDeprecation; // $ExpectType boolean | undefined
+}
+
 {
     process.permission.has("fs.read"); // $ExpectType boolean
     process.permission.has("fs.read", "./README.md"); // $ExpectType boolean