Has an Olympic Hockey (Men) game ever ended 6-6?
It has. 6-6 has been a Olympic Hockey (Men) final 2 times in 891 games. The first was Finland and Japan drew on February 23, 1960; the latest was Latvia and Slovakia drew on February 10, 2002.
That makes 6-6 the 60th most common final score out of 99 that have ever occurred in Olympic Hockey (Men). One point away, 7-6 has happened 2 times and 6-7 has happened never. At one point the score disappeared for 42 years, between 1960 and 2002.