Katie Startup (born 28 January 1999) is an English professional footballer who plays as a goalkeeper for Women's Super League club Manchester City.
While attending Maidstone Grammar School for Girls, Startup played football for the school team and was picked up by Meridian Girls FC. From there she joined Gillingham and then Chelsea.
Startup began her senior career in 2017 at Charlton Athletic, in third tier of women's football. Here, she helped Charlton achieve promotion to the Women's Championship.
The following season, Startup played in all 20 matches of the 2018âÂÂ19 campaign. Charlton finished in third place, narrowly missing out on promotion to Tottenham Hotspur in second, five points ahead. During this season, Startup kept eight clean sheets, and was nominated for the November 2018 Women's Championship Player of the Month. However, Startup missed out to Mollie Green, who was at Manchester United at the time.
The 2019âÂÂ20 season was less successful for Startup and Charlton. Charlton failed to win in any of their 12 games, before the season was terminated, however Startup managed to keep one clean sheet during the season, in a 0âÂÂ0 draw against Lewes. In October 2019, Startup raised awareness for mental health and suicide by changing her kit number from 1 to 40.
After Startup's impressive performances in the Women's Championship, she caught the eye of Brighton & Hove Albion, who snatched up her services in the summer of 2020, and signed her on a 2-year contract. Startup made her debut for Brighton in the Women's FA Cup against Huddersfield on 16 May 2020.
On 28 October 2023 she signed a contract extension with Brighton.
Shortly after signing for Brighton, Startup returned to Charlton on a short-term loan for the 2020âÂÂ21 season.
Startup made her first appearance since returning to Charlton against Crystal Palace in a 2âÂÂ2 draw. She made three other appearances for Charlton that season, coming against Blackburn Rovers, Liverpool, and Coventry United.
Startup kept her first and only clean sheet of her four appearances against Blackburn, in a 1âÂÂ0 victory away from home.
On 14 April 2024, Startup joined Manchester City on an emergency loan for the remainder of the 2023âÂÂ24 season.
After spending the last few weeks of the previous season on loan to Manchester City, Startup signed a two-year deal with the club on 6 September 2024.
On 28 September 2025, Startup joined Everton on an emergency loan, following an injury to Courtney Brosnan. On 16 November 2025, she returned to Manchester City.
Startup has represented England at an U17 and U19 level.