The women's K-1 slalom competition in canoeing at the 2008 Summer Olympics took place on August 13 and August 15, 2008 at the Shunyi Olympic Rowing-Canoeing Park in Beijing. The K-1 (kayak single) event is raced by one-person kayaks through a whitewater course. The final was rescheduled to the 15th due to persistent lightning at the Park. The semifinals consisted of a single run. The field was narrowed to the top 10 scores from that run; those 10 boats advanced to the final. The times from the final were added to the semifinal score to give an overall total.