1972 South American Open

The 1972 South American Open was a men's tennis tournament played on outdoor clay courts in Buenos Aires, Argentina from 27 November through 1 December 1972. It was held the fifth edition of the tournament and was a non-tour event, i.e. not part of the Grand Prix tennis circuit. Karl Meiler won the singles title.

Singles
Karl Meiler defeated 🇦🇷 Guillermo Vilas 6–7, 2–6, 6–4, 6–4, 6–4
 * It was Meiler's only ATP title of the year and the 1st of his ATP career.

Doubles
Jaime Fillol / Jaime Pinto-Bravo defeated 🇨🇴 Iván Molina / 🇦🇺 Barry Phillips-Moore 2–6, 7–6, 6–2