1974 South Australian Tennis Championships

{{Use dmy dates|date=December 2021}}

{{Use Australian English|date=November 2011}}

{{TennisEventInfo|1974|South Australian Tennis Championships|

| date=1–7 December

| edition=76th

| category=Non-tour

| prize_money=$5,000

| surface=Grass

| location=Adelaide, Australia

| champms={{flagicon|SWE}} Björn Borg{{cite web |title=1974 Adelaide – Men's Singles draw |url=https://www.atptour.com/en/scores/archive/adelaide/7308/1974/draws?matchtype=singles |publisher=Association of Tennis Professionals (ATP)}}

| champws={{flagicon|USSR}} Olga Morozova

| after_name=Marlboro South Australian Men's Tennis Classic

| before_year=1972

| main_name=South Australian Championships

}}

The 1974 South Australian Championships was a combined men's and women's professional tennis tournament played on outdoor grass courts in Adelaide, Australia. It was the 76th edition of the tournament and was held from 1 December until 7 December 1974. First-seeded Björn Borg and Olga Morozova won the singles titles.{{cite book|title=World of Tennis '75 : a BP and Commercial Union yearbook|year=1975|publisher=Queen Anne Press|location=London|isbn=9780362002171|page=172|editor=John Barrett}}{{cite news |url=http://nla.gov.au/nla.news-article250556492 |title=Tennis |newspaper=Papua New Guinea Post-courier |date=9 December 1974 |page=19 |via=National Library of Australia}}