Olaf

Olaf (given name) is a Scandinavian, German, and Dutch given name.

Olaf can be

 Olaf, Iowa, unincorporated community in the United States
 European Anti-Fraud Office (OLAF)
 OLAF (Organization to solve the foreigner question), a 2010 Swiss satire
 Tropical Storm Olaf, several storms
 Count Olaf, the fictional primary antagonist in A Series of Unfortunate Events
 Olaf (Frozen), a fictional character from Disney's Frozen franchise
 A variant of the letter Aleph