Hjalmarsson or Hjálmarsson is a patronymic surname meaning "son of Hjalmar". Notable people with the surname include: Barbro Hjalmarsson (1919–2012), Swedish nurse and inventor. Gustav Hjalmarsson (born 1986), Swedish ice hockey player. Niklas Hjalmarsson (born 1987), Swedish ice hockey player. Simon Hjalmarsson (born 1989), Swedish ice hockey player. Vilhjálmur Hjálmarsson (1914–2014), Icelandic politician https://en.wikipedia.org/wiki/Hjalmarsson