TJF

TJF may refer to:
 * The Jared Foundation, a charity
 * The Jitsu Foundation, a national-level association of sports clubs headquartered in the United Kingdom with affiliated organisations in other countries
 * Thomas Jefferson Foundation, the governing and operating body of Monticello and its grounds as a house museum and educational institution in Virginia
 * The Joy Formidable, a Welsh alternative rock band
 * Tom Joyner Foundation, an American foundation that provides financial assistance to students at historically black colleges and universities