John Ulrich "Johnny" Buchler (7 April 1930 – 1 August 2017) was a South African rugby union player, most often playing as a fullback.

Buchler was part of the 1951–52 South Africa rugby tour of Great Britain, Ireland and France which lost only once in 31 matches, winning all five international Tests.

At the time of the 1951 tour of Great Britain, Bulcher was a compound assistant on a Rand mine, having previously been a clerk.

[5] Buchler had a near faultless game, but one mistake led to the tourists' winning try; when he failed to correctly handle a New Zealand kick which saw Larry Savage score.

[8] Buchler played in the first encounter of the tour against the South East Counties, missing the next two games to allow rotation of the fullback position between himself, Basie Viviers and Jakkals Keevy.

He played in the win over Cardiff on 20 October 1951 and after missing two games he was back in the squad to face a combined Glasgow and Edinburgh side.

Buchler scored a penalty goal and made two conversions in the match, but was forced to leave the field in the second half after injuring his left ankle.

Buchler was key to the South African play in the encounter with Wales, punishing Cliff Morgan by returning the Welsh fly-half's kicks with greater precision.

The first at Johannesburg ended in a 25–3 win for South Africa, Buchler scored a penalty goal and a conversion, his first international points.