The men's 3000 metres steeplechase at the 2017 World Championships in Athletics was held at the London Olympic Stadium on 6 and 8 August. After a temporary retirement announced immediately after the Olympic race, 4-time champion, seven time medalist Ezekiel Kemboi (Kenya), once known for his flamboyant frohawk hairstyles was back, now as a 35-year-old without a hair on his head. His historic record was well known, but his semi-final was his fastest race of the year making him an unknown quantity. In fact, the entire 2015 podium and the 2016 Olympic podium were in this event, though 2008 Olympic champion and 2015 bronze medalist Brimin Kipruto (Kenya) at age 33 didn't make the final.