Kolja or Colja is a short form of the given name Nikolai. It may refer to: Kolya (Czech: Kolja), a 1996 Czech drama film Kolja Afriyie (born 1982), German former professional football player Kolja Blacher (born 1963), German violin player Kolja Pusch (born 1993), German footballer Kolja Schallenberg (born 1984), German director and play writer Alojz Colja (born 1943), Slovenian rower Nikola Pejaković, Serbian actor, theater director and musician, nicknamed Kolja. See also Kolya (disambiguation)