Namesakes
Valdemar I the Great
(m) 1131-1182 
Danish Kings and Queens 1157-1182
Valdemar II the Victorious
(m) 1170-1241
Danish Kings and Queens 1202-1241
Valdemar
(m) 1239-1302
Swedish Kings and Queens 1250-1275
Valdemar III
(m) 1314-1364
Danish Kings and Queens 1326-1330
Valdemar IV Atterdag
(m) 1320-1375
Danish Kings and Queens 1340-1375
Kurt Lundquist
(a.k.a. Valdemar) (m) 1925-2011
Olympic Medalists 1948 4x400 m relay (bronze)
Voitto Hellsten
(a.k.a. Valdemar) (m) 1932-1998
Olympic Medalists 1956 400 m (bronze)
Felix of Denmark
(a.k.a. Valdemar) (m) 2002-
Other Royalty 2002-2023 Denmark (prince)
Christian, Crown Prince of Denmark
(a.k.a. Valdemar) (m) 2005-
Other Royalty 2005- Denmark (prince)