The 1981 Toyota Series Championships was a women's tennis tournament played on indoor carpet courts at the Byrne Meadowlands Arena in East Rutherford, New Jersey in the United States that was the season-ending tournament of the 1981 Toyota World Championship Series.

It was the fifth edition of the tournament and was held from December 15 through December 20, 1981.

[1] Third-seeded Tracy Austin won the singles title and earned $75,000 first-prize money.

[2][3] Tracy Austin defeated Martina Navratilova 2–6, 6–4, 6–2 Martina Navratilova / Pam Shriver defeated Rosemary Casals / Wendy Turnbull 6–3, 6–4 Doubles prize money is per team.