Vlasák

Vlasák (feminine Vlasáková) is a Czech surname denoting a person with a large amount of hair (vlasy). Notable people include:
 * Hana Vlasáková, Czech volleyball player
 * Jan Vlasák (1943), Czech actor, famous for his role in the 2005 film Hostel
 * Jerry Vlasak, American surgeon
 * Lavínia Vlasak, Brazilian actress
 * Lenka Vlasáková, Czech actress
 * Oldřich Vlasák, Czech politician
 * Oldřich Vlasák (wrestler), Czech wrestler
 * Tomáš Vlasák, Czech ice hockey player

Wlassak is a Germanized version of the surname.
 * Rudolf Wlassak, Austrian physiologist