Namesakes
Notable Actors and Entertainers:
2 actors
Leif Erickson 1911-1986 
Leif Garrett 1961-
Notable Explorers and Adventurers:
1 explorer
Leif Erikson c. 970-c. 1020
Notable Musicians:
1 singer
Leif Garrett 1961-
Olympic Medalists:
1 gold
(gold) Helmer Pedersen (a.k.a. Leif) 1964 sailing