10K Bilbao is a 10-kilometre road race held in Bilbao on a Saturday in March. Bilbao Atletismo Santutxu organizes the event, with support from Bilbao City Council. The race is listed on the calendars of the Royal Spanish Athletics Federation, European Athletics, and World Athletics.
The course is officially approved by the Royal Spanish Athletics Federation, ensuring runners receive a measured 10K. Although still a young event, now in its second edition, the federation listings grant it a formal position on the Spanish road-racing calendar.