Mr. Fahrenheit may refer to:
- A song lyric from "Don't Stop Me Now" by Queen
- A person who is at least 200 degrees Fahrenheit
- A person who is travelling at the speed of light
- He wants to make a supersonic man/woman out of you
- Freddie Mercury.
- Mr. Fahrenheit (pageant), gay beauty pageant in Philippines
- Mr. Fahrenheit, 2016 young adult novel by T. Michael Martin
- Mr. Fahrenheit, British / German Streetart Artist