1974 South Australian Tennis 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.

Men's singles
🇸🇪 Björn Borg defeated 🇦🇺 Onny Parun 6–4, 6–4, 3–6, 6–2
 * It was Borg's 8th singles title of the year and of his career.

Women's singles
Olga Morozova defeated 🇦🇺 Evonne Goolagong 7–6, 2–6, 6–2