Andreasson is a surname. Notable people with the surname include:
Egon Andreasson (1910–1983), Swedish politician
Knut Olaf Andreasson Strand (1887–1980), Norwegian politician for the Liberal Party
Marcus Andreasson (born 1978), Swedish footballer
Martin Andreasson, born 1970, is a Swedish Liberal People's Party politician, member of the Riksdag 2002–2006
Mattias Andréasson (born 1981), Swedish singer and Swedish Idol 2007 contestant
Rikard Andreasson (born 1979), Swedish cross country skier who has competed since 2000
Rune Andréasson (1925–1999), Swedish comic creator
Veronica Andrèasson (born 1981), Swedish road cyclist
