- YTF stands for YouTube Friends
- YTF stands for Yesterday, Today, Forever
- YTF stands for Youth for Technology Foundation (US and Nigeria)
- YTF stands for Youth Task Force (various locations)
- YTF stands for YiG (Yttrium-Iron Garnet) Tuned Filter (microwave filter)
- YTF stands for Young Teen Fiction (Staffordshire Book Award)
- YTF stands for Yield the Floor (multi-person online chats)
- YTF stands for Young Telford Fighters (Edinburgh, Scotland gang)
YTF