| 1978 Colgate-Palmolive Masters | |
|---|---|
| Date | January 10–14, 1979 |
| Edition | 9th |
| Category | Masters |
| Draw | 8S / 4D |
| Prize money | $400,000 |
| Surface | Carpet / indoor |
| Location | New York City, US |
| Venue | Madison Square Garden |
| Champions | |
| Singles | |
 John McEnroe[1] | |
| Doubles | |
| John McEnroe / Peter Fleming[2] | |
The 1978 Masters (also known as the 1978 Colgate-Palmolive Masters for sponsorship reasons)[3] was a men's tennis tournament played on indoor carpet courts in Madison Square Garden, New York City, United States between 10 January and 14 January 1979. It was the year-end championship of the 1978 Grand Prix circuit tour. John McEnroe won the singles title.
John McEnroe defeated Arthur Ashe, 6–7, 6–3, 7–5
John McEnroe / Peter Fleming defeated 
Tom Okker / 
Wojtek Fibak 6–4, 6–2, 6-4
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