Vlk' is a Czech surname (meaning wolf). People with the surname Vlk include:
Blažej Vlk or Blasius Lupus (c. 1350-1410), early rector of the Charles University in Prague (de:Blasius Lupus)
František Vlk (born 1925), Czech footballer
Jaromír Vlk (born 1949), Czech shot putter (de:Jaromír Vlk)
Lubomír Vlk (born 1964), Czech footballer
Miloslav Vlk (1932-2017), Czech Archbishop and cardinal
Přemysl Vlk (1981/2-2003), Czech slalom canoer
Vladimír Vlk (born 1968), Slovak ice hockey player
