The WTA New Jersey is a defunct WTA Tour affiliated tennis tournament played from 1978 to 1989. It was held in Mahwah, New Jersey in the United States and played on outdoor hard courts.

Steffi Graf was the most successful player at the tournament, winning the singles competition three times and the doubles competition in 1989 partnering American Pam Shriver.

Year	Champions	Runners-up	Score
1978	Virginia Wade	Kerry Reid	1–6, 6–1, 6–4
1979	Chris Evert	Tracy Austin	6–7(2–7), 6–4, 6–1
1980	Hana Mandlíková	Andrea Jaeger	6–7(0–7), 6–2, 6–2
1981	Hana Mandlíková	Pam Casale	6–2, 6–2
1982	Leigh-Anne Thompson	Bettina Bunge	7–6(7–4), 6–3
1983	Jo Durie	Hana Mandlíková	2–6, 7–5, 6–4
1984	Martina Navratilova	Pam Shriver	6–4, 4–6, 7–5
1985	Kathy Rinaldi	Steffi Graf	6–4, 3–6, 6–4
1986	Steffi Graf	Molly Van Nostrand	7–5, 6–1
1987	Manuela Maleeva-Fragnière	Sylvia Hanika	1–6, 6–4, 6–1
1988	Steffi Graf	Nathalie Tauziat	6–0, 6–1
1989	Steffi Graf	Andrea Temesvári	7–5, 6–2

Year	Champions	Runners-up	Score
1978	Ilana Kloss Marise Kruger	Barbara Potter Pam Whytcross	6–3, 6–1
1979	Tracy Austin Betty Stöve	Mima Jaušovec Regina Maršíková	7–6, 2–6, 6–4
1980	Martina Navratilova Candy Reynolds	Pam Shriver Betty Stöve	4–6, 6–3, 6–1
1981	Rosemary Casals Wendy Turnbull	Candy Reynolds Betty Stöve	6–2, 6–1
1982	Barbara Potter Sharon Walsh	Rosemary Casals Wendy Turnbull	6–1, 6–4
1983	Jo Durie Sharon Walsh	Rosalyn Fairbank Candy Reynolds	4–6, 7–5, 6–3
1984	Martina Navratilova Pam Shriver	Jo Durie Ann Kiyomura	7–6, 3–6, 6–2
1985	Kathy Jordan Elizabeth Smylie	Claudia Kohde-Kilsch Helena Suková	7–6, 6–3
1986	Betsy Nagelsen Elizabeth Smylie	Steffi Graf Helena Suková	7–6, 6–3
1987	Gigi Fernández Lori McNeil	Anne Hobbs Elizabeth Smylie	6–3, 6–2
1988	Jana Novotná Helena Suková	Gigi Fernández Robin White	6–3, 6–2
1989	Steffi Graf Pam Shriver	Louise Allen Laura Gildemeister	6–2, 6–4

• WTA Results Archive