YF-23 (disambiguation)

YF-23 might refer to:


 * Northrop YF-23, American single-seat, twin-engine stealth fighter aircraft technology demonstrator designed for the United States Air Force (USAF).
 * YF-23 (rocket engine), the second stage vernier engine of the Feng Bao 1, Long March 2, Long March 3 and Long March 4 launch vehicles.