Isac von Krusenstierna (born 14 January 1998) is a Swedish orienteering competitor who represents the club OK Kåre.

[1] Krusenstierna won a gold medal in sprint at the 2021 World Orienteering Championships in Doksy, ahead of Kasper Fosser.

[2][3] In the 2016 Junior World Orienteering Championships, he received three medals, with a silver in the relay event and bronze medals in the classic and sprint.

[4] He won an additional silver medal in the 2018 relay event, held in Hungary.

This biographical article about a Swedish orienteer is a stub.