diff --git a/src/components/shared/CreatedByFilter/CreatedByFilter.test.tsx b/src/components/shared/CreatedByFilter/CreatedByFilter.test.tsx
new file mode 100644
index 000000000..0f3de1227
--- /dev/null
+++ b/src/components/shared/CreatedByFilter/CreatedByFilter.test.tsx
@@ -0,0 +1,143 @@
+import { render, screen } from "@testing-library/react";
+import userEvent from "@testing-library/user-event";
+import { describe, expect, it, vi } from "vitest";
+
+import { DEFAULT_CREATED_BY_ME_FILTER_VALUE } from "@/utils/constants";
+
+import { CreatedByFilter } from "./CreatedByFilter";
+
+describe("CreatedByFilter", () => {
+  describe("rendering", () => {
+    it("should render with toggle unchecked and search input when no value", () => {
+      render(<CreatedByFilter value={undefined} onChange={vi.fn()} />);
+
+      expect(screen.getByRole("switch")).not.toBeChecked();
+      expect(screen.getByLabelText("Created by me")).toBeInTheDocument();
+      expect(screen.getByPlaceholderText("Search by user")).toBeInTheDocument();
+      expect(
+        screen.getByRole("button", { name: "Search" }),
+      ).toBeInTheDocument();
+    });
+
+    it("should show 'Created by {user}' and checked switch when value is set", () => {
+      render(<CreatedByFilter value="john.doe" onChange={vi.fn()} />);
+
+      expect(screen.getByRole("switch")).toBeChecked();
+      expect(screen.getByLabelText("Created by john.doe")).toBeInTheDocument();
+    });
+  });
+
+  describe("toggle behavior", () => {
+    it("should call onChange with 'me' when toggle is turned on", async () => {
+      const user = userEvent.setup();
+      const onChange = vi.fn();
+      render(<CreatedByFilter value={undefined} onChange={onChange} />);
+
+      await user.click(screen.getByRole("switch"));
+
+      expect(onChange).toHaveBeenCalledWith(DEFAULT_CREATED_BY_ME_FILTER_VALUE);
+    });
+
+    it("should call onChange with undefined when toggle is turned off", async () => {
+      const user = userEvent.setup();
+      const onChange = vi.fn();
+      render(
+        <CreatedByFilter
+          value={DEFAULT_CREATED_BY_ME_FILTER_VALUE}
+          onChange={onChange}
+        />,
+      );
+
+      await user.click(screen.getByRole("switch"));
+
+      expect(onChange).toHaveBeenCalledWith(undefined);
+    });
+
+    it("should clear filter when toggling off with existing value", async () => {
+      const user = userEvent.setup();
+      const onChange = vi.fn();
+      render(<CreatedByFilter value="john.doe" onChange={onChange} />);
+
+      await user.click(screen.getByRole("switch"));
+
+      expect(onChange).toHaveBeenCalledWith(undefined);
+    });
+  });
+
+  describe("search behavior", () => {
+    it("should have search button disabled when input is empty", () => {
+      render(<CreatedByFilter value={undefined} onChange={vi.fn()} />);
+
+      expect(screen.getByRole("button", { name: "Search" })).toBeDisabled();
+    });
+
+    it("should enable search button when input has text", async () => {
+      const user = userEvent.setup();
+      render(<CreatedByFilter value={undefined} onChange={vi.fn()} />);
+
+      await user.type(screen.getByPlaceholderText("Search by user"), "jane");
+
+      expect(screen.getByRole("button", { name: "Search" })).toBeEnabled();
+    });
+
+    it("should call onChange with typed user when search clicked", async () => {
+      const user = userEvent.setup();
+      const onChange = vi.fn();
+      render(<CreatedByFilter value={undefined} onChange={onChange} />);
+
+      await user.type(
+        screen.getByPlaceholderText("Search by user"),
+        "jane.doe",
+      );
+      await user.click(screen.getByRole("button", { name: "Search" }));
+
+      expect(onChange).toHaveBeenCalledWith("jane.doe");
+    });
+
+    it("should call onChange when Enter is pressed in input", async () => {
+      const user = userEvent.setup();
+      const onChange = vi.fn();
+      render(<CreatedByFilter value={undefined} onChange={onChange} />);
+
+      const input = screen.getByPlaceholderText("Search by user");
+      await user.type(input, "jane.doe{Enter}");
+
+      expect(onChange).toHaveBeenCalledWith("jane.doe");
+    });
+
+    it("should trim whitespace from search input", async () => {
+      const user = userEvent.setup();
+      const onChange = vi.fn();
+      render(<CreatedByFilter value={undefined} onChange={onChange} />);
+
+      await user.type(
+        screen.getByPlaceholderText("Search by user"),
+        "  jane  ",
+      );
+      await user.click(screen.getByRole("button", { name: "Search" }));
+
+      expect(onChange).toHaveBeenCalledWith("jane");
+    });
+
+    it("should not call onChange when searching with only whitespace", async () => {
+      const user = userEvent.setup();
+      const onChange = vi.fn();
+      render(<CreatedByFilter value={undefined} onChange={onChange} />);
+
+      await user.type(screen.getByPlaceholderText("Search by user"), "   ");
+
+      // Button should still be disabled
+      expect(screen.getByRole("button", { name: "Search" })).toBeDisabled();
+    });
+  });
+
+  describe("initial state", () => {
+    it("should populate search input with current value", () => {
+      render(<CreatedByFilter value="existing-user" onChange={vi.fn()} />);
+
+      expect(screen.getByPlaceholderText("Search by user")).toHaveValue(
+        "existing-user",
+      );
+    });
+  });
+});
diff --git a/src/components/shared/CreatedByFilter/CreatedByFilter.tsx b/src/components/shared/CreatedByFilter/CreatedByFilter.tsx
new file mode 100644
index 000000000..46da15c25
--- /dev/null
+++ b/src/components/shared/CreatedByFilter/CreatedByFilter.tsx
@@ -0,0 +1,84 @@
+import type { KeyboardEvent } from "react";
+import { useState } from "react";
+
+import { Button } from "@/components/ui/button";
+import { Input } from "@/components/ui/input";
+import { Label } from "@/components/ui/label";
+import { InlineStack } from "@/components/ui/layout";
+import { Switch } from "@/components/ui/switch";
+import { DEFAULT_CREATED_BY_ME_FILTER_VALUE } from "@/utils/constants";
+
+interface CreatedByFilterProps {
+  /** Current filter value. undefined means no filter, "me" means current user. */
+  value: string | undefined;
+  /** Called when the filter value changes. undefined clears the filter. */
+  onChange: (value: string | undefined) => void;
+}
+
+/**
+ * Filter component for filtering by creator/initiator.
+ * Provides a toggle for "Created by me" and an input for searching by specific user.
+ */
+export function CreatedByFilter({ value, onChange }: CreatedByFilterProps) {
+  const [searchUser, setSearchUser] = useState(value ?? "");
+
+  const isFilterActive = value !== undefined;
+  const toggleText = value ? `Created by ${value}` : "Created by me";
+
+  const handleToggleChange = (checked: boolean) => {
+    if (checked) {
+      // Enable filter - if no specific user set, default to "me"
+      if (!value) {
+        onChange(DEFAULT_CREATED_BY_ME_FILTER_VALUE);
+        setSearchUser("");
+      }
+    } else {
+      // Disable filter
+      onChange(undefined);
+    }
+  };
+
+  const handleUserSearch = () => {
+    const trimmedUser = searchUser.trim();
+    if (trimmedUser) {
+      onChange(trimmedUser);
+    }
+  };
+
+  const handleKeyDown = (e: KeyboardEvent<HTMLInputElement>) => {
+    if (e.key === "Enter" && searchUser.trim()) {
+      e.preventDefault();
+      handleUserSearch();
+    }
+  };
+
+  return (
+    <InlineStack gap="4" blockAlign="center">
+      <InlineStack gap="2" blockAlign="center">
+        <Switch
+          id="created-by-filter"
+          checked={isFilterActive}
+          onCheckedChange={handleToggleChange}
+        />
+        <Label htmlFor="created-by-filter">{toggleText}</Label>
+      </InlineStack>
+      <InlineStack gap="1" blockAlign="center" wrap="nowrap">
+        <Input
+          placeholder="Search by user"
+          value={searchUser}
+          onChange={(e) => setSearchUser(e.target.value)}
+          onKeyDown={handleKeyDown}
+          className="w-40"
+        />
+        <Button
+          variant="outline"
+          size="sm"
+          onClick={handleUserSearch}
+          disabled={!searchUser.trim()}
+        >
+          Search
+        </Button>
+      </InlineStack>
+    </InlineStack>
+  );
+}
diff --git a/src/components/shared/PipelineRunFiltersBar/PipelineRunFiltersBar.tsx b/src/components/shared/PipelineRunFiltersBar/PipelineRunFiltersBar.tsx
index 79f7e0f6f..80b93233a 100644
--- a/src/components/shared/PipelineRunFiltersBar/PipelineRunFiltersBar.tsx
+++ b/src/components/shared/PipelineRunFiltersBar/PipelineRunFiltersBar.tsx
@@ -2,6 +2,7 @@ import { useState } from "react";
 import type { DateRange } from "react-day-picker";
 
 import { AnnotationFilterInput } from "@/components/shared/AnnotationFilterInput/AnnotationFilterInput";
+import { CreatedByFilter } from "@/components/shared/CreatedByFilter/CreatedByFilter";
 import { StatusFilterSelect } from "@/components/shared/StatusFilterSelect/StatusFilterSelect";
 import { Button } from "@/components/ui/button";
 import { DatePickerWithRange } from "@/components/ui/date-picker";
@@ -73,6 +74,13 @@ export function PipelineRunFiltersBar() {
           )}
         </div>
 
+        <div className="shrink-0">
+          <CreatedByFilter
+            value={filters.created_by}
+            onChange={(value) => setFilter("created_by", value)}
+          />
+        </div>
+
         <div className="shrink-0">
           <StatusFilterSelect
             value={filters.status}
diff --git a/src/utils/constants.ts b/src/utils/constants.ts
index 1f5388f2a..5f6f70bdb 100644
--- a/src/utils/constants.ts
+++ b/src/utils/constants.ts
@@ -13,6 +13,8 @@ export const PRIVACY_POLICY_URL =
 export const DOCUMENTATION_URL =
   import.meta.env.VITE_DOCUMENTATION_URL || "https://tangleml.com/docs/";
 
+export const DEFAULT_CREATED_BY_ME_FILTER_VALUE = "me";
+
 export const API_URL = import.meta.env.VITE_BACKEND_API_URL || "";
 export const BASE_URL = import.meta.env.VITE_BASE_URL || "/";
 export const IS_GITHUB_PAGES = import.meta.env.VITE_GITHUB_PAGES === "true";