William Poromaa

William Poromaa (born 23 December 2000) is a Swedish cross-country skier who competes internationally.

He competed at the FIS Nordic World Ski Championships 2021 in Oberstdorf, where he placed fourth in the relay with the Swedish team.

Personal life
Poromaa is a son of former cross-country skiers Anette Fanqvist and Larry Poromaa. Poromaa is of Finnish descent through his paternal grandmother.

Cross-country skiing results
All results are sourced from the International Ski Federation (FIS).

Olympic Games
Distance reduced to 30 km due to weather conditions.

World Championships

 * 1 medal – (1 bronze)

Individual podiums

 * 5 podiums – (4 WC, 1 SWC)

Team podiums

 * 1 victory – (1 RL)
 * 2 podiums – (2 RL)