Namesakes
Danish Kings and Queens:
2 kings
King Oluf I Hunger (a.k.a. Olaf) 1086-1095 
King Oluf II (a.k.a. Olaf) 1376-1387
German Chancellors and Presidents:
1 chancellor
(chancellor) Olaf Scholz 2021-
Norwegian Kings and Queens:
6 kings
King Olav I (a.k.a. Olaf) 995-1000
King Olav II the Holy (a.k.a. Olaf) 1015-1028
King Olav III the Quiet (a.k.a. Olaf) 1067-1093
King Olav (a.k.a. Olaf) 1103-1115
King Olav IV (a.k.a. Olaf) 1380-1387
King Olav V (a.k.a. Olaf) 1957-1991
Olympic Medalists:
2 gold
(gold) Olav V (a.k.a. Olaf) 1928 sailing
(gold) Olaf Hampel 1994; 1998 bobsleigh
Other Royalty:
1 prince
Wilhelm of Prussia (a.k.a. Olaf) 1906-1940 Prussia
Saints:
2 saints
Saint Olof Skötkonung (a.k.a. Olaf) 980-1022
Saint Olaf II of Norway 995-1030
Swedish Kings and Queens:
2 kings
King Olof Skötkonung (a.k.a. Olaf) 995-1022
King Gustaf VI Adolf (a.k.a. Olaf) 1950-1973