Lūsis is a Latvian surname.
Notable people with this surname include: Gunārs Lūsis (born 1950), Latvian artist Helvijs Lūsis (born 1987), Latvian bobsledder Jānis Lūsis (1939–2020), Latvian athlete Voldemārs Lūsis (born 1974), Latvian athlete, son of Jānis
See also
Lusis, a 1992 album by Christian industrial band Mortal