Has an Olympic Hockey (Women) game ever ended 5-5?
Exactly once. On February 16, 2002, Germany and China drew 5-5, and no Olympic Hockey (Women) game before or since has ended that way. When it happened it was a scorigami, the first 5-5 in league history.
That makes 5-5 the 27th most common final score out of 41 that have ever occurred in Olympic Hockey (Women). One point away, 6-5 has happened never and 5-6 has happened never.