The 1973 Paris Open was a Grand Prix tennis tournament played on indoor carpet courts. It was the 5th edition of the Paris Open (later known as the Paris Masters). It took place at the Palais omnisports de Paris-Bercy in Paris, France, from October 29, through November 4, 1973.
Ilie Năstase defeated Stan Smith 4–6, 6–1, 3–6, 6–0, 6–2
- It was Nastase's 24th title of the year and the 58th of his career.
Juan Gisbert, Sr. / Ilie Năstase defeated Arthur Ashe / Roscoe Tanner 6–2, 4–6, 7–5
- It was Gisbert Sr.'s 3rd title of the year and the 9th of his career. It was Nastase's 23rd title of the year and the 57th of his career.