1973 Canadian Indoor Championships

The 1973 Canadian Indoor Championships was a men's tennis tournament played on indoor hard courts that was part of the 1973 USLTA Indoor Circuit and took place at the Glenmore Racquet Club in Calgary, Alberta in Canada. It was the inaugural edition of the tournament and was held from 12 February through 17 February 1973. First-seeded Ilie Năstase won the singles title which earned him $3,000 first-prize money.

Singles
🇷🇴 Ilie Năstase defeated 🇺🇸 Paul Gerken 6–4, 7–6(5–4)
 * It was Năstase's 2nd singles title of the year and the 26th of his career.

Doubles
🇺🇸 Mike Estep / 🇷🇴 Ilie Năstase defeated 🇭🇺 Szabolcs Baranyi / 🇭🇺 Péter Szőke 6–7, 7–5, 6–3