Katherine Nicole Stengel (born February 29, 1992) is an American professional soccer player who plays as a forward for Women's Super League club Crystal Palace.

Stengel previously played for the Boston Breakers, Washington Spirit, Utah Royals, Houston Dash, and NJ/NY Gotham FC in the NWSL, Bayern Munich in Germany, both Western Sydney Wanderers and Newcastle Jets in the Australian W-League, and Liverpool in the Women's Super League.

[2] She attended Wake Forest University from 2010 to 2013 where she played for the Demon Deacons women's soccer team.

In January 2014, Stengel skipped the 2014 NWSL College Draft and instead joined the Los Angeles Blues of the since-disbanded USL W-League.

[8] Stengel was signed by Australian team Western Sydney Wanderers ahead of the 2016–17 W-League season.

[12] Stengel scored 10 goals for the Jets and finished second in the Golden Boot race behind Sam Kerr.

Stengel wears the number 24 kit for the Lady Reds and plays as a striker on the first-division team.

[20] After just over a year at Gotham FC, Stengel moved permanently to Crystal Palace on a two-year deal on September 13, 2024.

In March 2014, she received her first full national team call-up from head coach Tom Sermanni.