1991 Newsweek Champions Cup and the Virginia Slims of Palm Springs

The 1991 Newsweek Champions Cup and the Virginia Slims of Palm Springs were tennis tournaments played on outdoor hard courts. It was the 18th edition of the tournament, and was part of the ATP Super 9 of the 1991 ATP Tour, and of the Tier II Series of the 1991 WTA Tour. It was held from March 2 through March 16, 1991.

In the men's tournament, Jim Courier won both the singles and doubles tournaments, partnering Javier Sánchez in the latter. This is the first time ever that a male player achieved both titles at the same year.

Men's singles
🇺🇸 Jim Courier defeated 🇫🇷 Guy Forget, 4–6, 6–3, 4–6, 6–3, 7–6(7–4)
 * It was Courier's 1st title of the year and his 2nd overall. It was his 1st Masters title.

Women's singles
🇺🇸 Martina Navratilova defeated Monica Seles 6–2, 7–6(8–6)
 * It was Navratilova's 2nd title of the year and her 154th overall.

Men's doubles
🇺🇸 Jim Courier / 🇪🇸 Javier Sánchez defeated 🇫🇷 Guy Forget / 🇫🇷 Henri Leconte 7–6, 3–6, 6–3

Women's doubles
The women's doubles final was not played due to rain.