The surname Myhill may refer to:
Boaz Myhill (born 1982), American-born Welsh footballer John Myhill (1923—1987), British mathematician Kirby Myhill (born 1992), Welsh rugby union player
In mathematics and theoretical computer science, the name appears also in:
Myhill congruence Myhill's constructive set theory Myhill graph Myhill isomorphism theorem Myhill–Nerode theorem Myhill's property Rice-Myhill-Shapiro theorem