The 1978 Paris Open was a Grand Prix tennis tournament played on indoor carpet courts. It was the 10th 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 November 5, 1978.
Robert Lutz defeated Tom Gullikson 6–2, 6–2, 7–6
- It was Lutz's 4th title of the year and the 35th of his career.
Bruce Manson / Andrew Pattison defeated Ion Ţiriac / Guillermo Vilas 7–6, 6–2
- It was Manson's only title of the year and the 1st of his career. It was Pattison's only title of the year and the 6th of his career.