|Country||Canada, Kelowna, British Columbia|
|Most recent champion(s)||N.A.|
The Kelowna Hydrofest (or Kelowna Regatta) is a hydroplane boat race in the H1 Unlimited season. The race is held in August on Okanagan Lake in Kelowna, British Columbia, Canada. The race is the main attraction of the summer events in British Columbia. Hydrofest is the largest professional boat racing series in Canada.
The city of Kelowna and the Okanagan at large has a history of boat racing and water sports. The first Kelowna Regatta was held in 1906 consisting of canoe and boat races, swimming, diving, and water oriented events and soon competition with other towns in the Okanagan began. The present day event is called Kelowna Regatta and no longer has the high speed boats.