1981 Avon Championships

{{Use mdy dates|date=January 2025}}

{{main|WTA Finals}}

{{TennisEventInfo|1981|Avon Championships|

| date= March 22–28

| edition=10th

| category=WTA Tour Championships

| draw=8S / 4D

| prize_money=$300,000

| surface=Carpet (Sporteze) / indoor

| location=New York City, New York

| venue=Madison Square Garden

| attendance=59,184

| champs= {{flagicon|USA}} Martina Navratilova

| champd= {{flagicon|USA}} Martina Navratilova / {{flagicon|USA}} Pam Shriver

| main_name=WTA Championships

}}

The 1981 Avon Championships were the tenth WTA Tour Championships, the annual tennis tournament for the best female tennis players in singles and doubles on the 10-tournament Avon Championship winter circuit of the 1981 WTA Tour. It was held from March 22 through March 28, 1981 and was played on indoor carpet courts at the Madison Square Garden in New York City, New York. First-seeded Martina Navratilova won the singles title and earned $100,000 first-prize money.{{cite web |title=Martina Navratilova, with special cause to celebrate, will be... |url=https://www.upi.com/Archives/1981/03/22/Martina-Navratilova-with-special-cause-to-celebrate-will-be/8498354085200/ |website=UPI |date=March 22, 1981}}{{cite book|title=Slazengers World of Tennis 1982 : The Official Yearbook of the International Tennis Federation|year=1982|publisher=Queen Anne Press|location=London|isbn=9780356085968|pages=185–187, 189|edition=14th|editor=John Barrett}}{{cite book|title=Women's Tennis 1968–84: the Ultimate Guide|year=2011|publisher=Remous|pages=526|author=John Dolan}}