1973 Jean Becker Open
| 1973 Paris Open | |
|---|---|
| Date | 29 October – 4 November |
| Edition | 5th |
| Prize money | $50,000 |
| Surface | Hard / indoor |
| Location | Paris, France |
| Venue | Palais omnisports de Paris-Bercy |
| Champions | |
| Singles | |
 Ilie Năstase [1] | |
| Doubles | |
 Juan Gisbert, Sr. / Ilie Năstase [2] | |
The 1973 Paris Open was a men's Grand Prix tennis tournament played on indoor hard 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 29 October until 4 November 1973. Ilie Năstase won the singles title.
Finals
Singles
Ilie Năstase defeated 
Stan Smith 4–6, 6–1, 3–6, 6–0, 6–2
- It was Nastase's 14th singles title of the year and the 36th of his career.
Doubles
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.