diff --git a/src/NetscriptFunctions.ts b/src/NetscriptFunctions.ts
index 14d953f1f..6674d6944 100644
--- a/src/NetscriptFunctions.ts
+++ b/src/NetscriptFunctions.ts
@@ -55,7 +55,7 @@ import { makeRuntimeRejectMsg, netscriptDelay, resolveNetscriptRequestedThreads
 import { numeralWrapper } from "./ui/numeralFormat";
 import { convertTimeMsToTimeElapsedString } from "./utils/StringHelperFunctions";
 
-import { LogBoxEvents } from "./ui/React/LogBoxManager";
+import { LogBoxEvents, LogBoxCloserEvents } from "./ui/React/LogBoxManager";
 import { arrayToString } from "./utils/helpers/arrayToString";
 import { isString } from "./utils/helpers/isString";
 
@@ -988,6 +988,12 @@ export function NetscriptFunctions(workerScript: WorkerScript): NS {
 
       LogBoxEvents.emit(runningScriptObj);
     },
+    closeTail: function (_pid: unknown = workerScript.scriptRef.pid): void {
+      updateDynamicRam("closeTail", getRamCost(Player, "closeTail"));
+      const pid = helper.number("closeTail", "pid", _pid);
+      //Emit an event to tell the game to close the tail window if it exists
+      LogBoxCloserEvents.emit(pid);
+    },
     nuke: function (_hostname: unknown): boolean {
       updateDynamicRam("nuke", getRamCost(Player, "nuke"));
       const hostname = helper.string("tail", "hostname", _hostname);
diff --git a/src/ScriptEditor/NetscriptDefinitions.d.ts b/src/ScriptEditor/NetscriptDefinitions.d.ts
index 63f6d2250..dfc63eee6 100644
--- a/src/ScriptEditor/NetscriptDefinitions.d.ts
+++ b/src/ScriptEditor/NetscriptDefinitions.d.ts
@@ -4981,6 +4981,21 @@ export interface NS {
    */
   tail(fn?: FilenameOrPID, host?: string, ...args: any[]): void;
 
+  /**
+   * Close the tail window of a script.
+   * @remarks
+   * RAM cost: 0 GB
+   *
+   * Closes a script’s logs. This is functionally the same pressing the "Close" button on the tail window.
+   *
+   * If the function is called with no arguments, it will close the current script’s logs.
+   *
+   * Otherwise, the pid argument can be used to close the logs from another script.
+   *
+   * @param pid - Optional. PID of the script having its tail closed. If omitted, the current script is used.
+   */
+  closeTail(pid?: number): void;
+
   /**
    * Get the list of servers connected to a server.
    * @remarks
diff --git a/src/ui/React/LogBoxManager.tsx b/src/ui/React/LogBoxManager.tsx
index 21839a23b..8da57a924 100644
--- a/src/ui/React/LogBoxManager.tsx
+++ b/src/ui/React/LogBoxManager.tsx
@@ -23,6 +23,7 @@ import { Settings } from "../../Settings/Settings";
 let layerCounter = 0;
 
 export const LogBoxEvents = new EventEmitter<[RunningScript]>();
+export const LogBoxCloserEvents = new EventEmitter<[number]>();
 export const LogBoxClearEvents = new EventEmitter<[]>();
 
 interface Log {
@@ -51,6 +52,15 @@ export function LogBoxManager(): React.ReactElement {
     [],
   );
 
+  //Event used by ns.closeTail to close tail windows
+  useEffect(
+    () =>
+      LogBoxCloserEvents.subscribe((pid: number) => {
+        closePid(pid);
+      }),
+    [],
+  );
+
   useEffect(() =>
     LogBoxClearEvents.subscribe(() => {
       logs = [];
@@ -58,11 +68,18 @@ export function LogBoxManager(): React.ReactElement {
     }),
   );
 
+  //Close tail windows by their id
   function close(id: string): void {
     logs = logs.filter((l) => l.id !== id);
     rerender();
   }
 
+  //Close tail windows by their pid
+  function closePid(pid: number): void {
+    logs = logs.filter((log) => log.script.pid != pid);
+    rerender();
+  }
+
   return (
     <>
       {logs.map((log) => (