The 1979 Colgate Series Championships was a women's tennis tournament played on indoor carpet courts at the Capital Centre in Landover, Maryland in the United States that was the season-ending tournament of the 1979 Colgate Series.

It was the third edition of the tournament and was held from January 2 through January 7, 1980.

[1] Second-seeded Martina Navratilova won the singles title and earned $75,000 first-prize money.

[2][3][4] Martina Navratilova defeated Tracy Austin 6–2, 6–1 Billie Jean King / Martina Navratilova defeated Chris Evert / Rosemary Casals 6–4, 6–3 Doubles prize money is per team.