Suk is a both a given name and a surname.
Notable people with the name include: In central and eastern Europe, the surname comes from Czech suk ("knot" in wood), as well as Ukrainian, Russian, and Serbo-Croatian cognates, ultimately from Proto-Slavic *sǫkъ.
The surname is gender-neutral in many countries but a feminine form is used in the Czech Republic and Slovakia: Suková.
The Polish equivalent is Sęk.