Laci or LACI may refer to:


Laci can be a short form of the Hungarian given name László.

  • de Laci, the surname of an old Norman noble family
  • Laci Boldemann (1921–1969), Swedish composer of German and Finnish descent
  • Laci Endresz, (born 1974), English circus performer who performs as Mooky the Clown
  • Laci Peterson (1975–2002), American murder victim
  • Laci Scott (born 1987), American beauty queen