Benjamin Louwrens Osler (23 November 1901 – 28 April 1962) was a rugby union footballer who played internationally for South Africa.

Osler played mainly at fly-half for both South Africa, and his provincial team of Western Province.

[2] The only Test of the series the Springboks did not win was their 3–3 draw in Port Elizabeth where Osler was temporarily knocked out.

The first Test was played in Durban and the Springboks won 17–0, with Osler scoring a world record 14 points in the match.

His accuracy when kicking allowed South African teams he was in to play a forward oriented game, commonly referred to as ten-man rugby.