Jansons is the Latvianized form of the surname Janson. Notable people with the surname include:Aigars Jansons, Latvian wrestler
Arvīds Jansons, Latvian conductor
Dans Jansons, Latvian freestyle skier
Jānis Alberts Jansons (1892–1971), Latvian folklorist, literary scholar and educator
Jānis Jansons, Latvian floorball player
Jānis Jansons (bobsledder), Latvian bobsledder
Jānis Jansons-Brauns (1872–1917), Latvian revolutionary, literary critic and journalist
Liene Jansone, Latvian basketball player
Mariss Jansons (1943–2019), Latvian conductor
Sven Jansons, Dutch athlete
Ulafs Jāņsons, pen name of Uldis Ģērmanis, Latvian historian, writer, and publicist
Valija Veščunas-Jansone, Latvian lawyer
Vera Jansone (1915–2004), Latvian-born American architect
Zaiga Jansone, Soviet-Latvian tennis player and tennis coach