Jack Oosterlaak

Olympic medal record
Men’s athletics
Representing  South Africa
	1920 Antwerp	4x400 metre relay

Jack Oosterlaak (Justus Kinloch Ayres Oosterlaak; 15 January 1896 in Wellington – 5 June 1968), was a South African athlete who competed mainly in the 400 metres.

He competed for South Africa in the 1920 Summer Olympics held in Antwerp, Belgium in the 4 x 400 metre relay where he won the Silver medal with his team mates Harry Davel, Clarence Oldfield and Bevil Rudd.

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