Namesakes
Nobel Prize Winners:
2 peace
(peace) Hjalmar Branting 1921 
(peace) Dag Hammarskjöld (a.k.a. Hjalmar) 1961
Notable Actors and Entertainers:
1 actor
Alexander Skarsgård (a.k.a. Hjalmar) 1976-
Notable Philosophers and Thinkers:
1 economist
Hjalmar Schacht 1877-1970
Olympic Medalists:
1 bronze, 1 gold/silver, 1 silver, 1 silver/gold
(gold/silver) Hjalmar Johansson 1908; 1912 diving - platform; diving - plain high
(silver/gold) Hjalmar Andersson 1912 cross country individual; cross country team
(bronze) Alvin Loftes (a.k.a. Hjalmar) 1912 cycling - road
(silver) Artur Svensson (a.k.a. Hjalmar) 1924 4x400 m relay
Other Leaders:
1 general secretary
General Secretary Dag Hammarskjöld (a.k.a. Hjalmar) 1953-1961 United Nations
Swedish Prime Ministers:
3 prime ministers
Hjalmar Hammarskjöld 1914-1917
Hjalmar Branting 1920; 1921-1923; 1924-1925
Ulf Kristersson (a.k.a. Hjalmar) 2022-