The Boys' 200 metres at the 2009 World Youth Championships in Athletics was held at the Brixen-Bressanone Sport Arena on 10, 11, and 12 July. The event was won by Kirani James of the Grenada, who also won the 400 metres.
Prior to the competition, the following records were as follows.
No new records were set during the competition.
Qualification rule: first 2 of each heat (Q) plus the 4 fastest times (q) qualified.
Qualification rule: first 2 of each heat (Q) plus the 2 fastest times (q) qualified.
Key: PB = Personal best, SB = Seasonal best
Wind: 0.6 m/s
Key: PB = Personal best, SB = Seasonal best
Wind: 0.9 m/s
Key: PB = Personal best, SB = Seasonal best
Wind: 1.4 m/s
Key: PB = Personal best, SB = Seasonal best
Wind: −0.9 m/s