Namesakes
Adolf van der Voort van Zijp
(a.k.a. Dolf) (m) 1892-1978 
Olympic Medalists 1924 equestrian (gold)
Adolf Seilacher
(a.k.a. Dolf) (m) 1925-2014
Notable Scientists and Inventors
Dolf Verroen
(m) 1928-
Notable Writers
Adolf Ogi
(a.k.a. Dölf) (m) 1942-
Swiss Presidents 1993; 2000