Patrick Stacey Murnane Flottmann (born 19 April 1997) is an Australian professional soccer player who plays for Avondale FC as a defender.
Flottmann attended Turramurra High School and played on their soccer team as the vice-captain.
In January 2018, Flottmann left Sydney FC due to lack of game time and signed with Thai League 2 club Air Force United. He played 17 matches during his season at Air Force United.
Flottmann returned to his youth club, Sydney FC in July 2019, signing a 2-year senior contract. He made his debut on 29 December 2019 against Melbourne City, coming on as a substitute to replace Adam Le Fondre in the 88th minute. On 28 April 2021, he was loaned to Brisbane Roar for a couple of weeks to provide injury cover for Tom Aldred. In July 2021, Sydney FC announced that they had released Flottmann.
In November 2021, Flottmann signed with Indian Super League club NorthEast United. He made his debut against Kerala Blasters FC on 25 November. He scored his first goal on 17 December in a 2âÂÂ0 win against East Bengal.
On 1 February 2023, Flottmann joined K League 2 club Seongnam FC. He played in 22 matches and scored 2 goals
On 9 April 2024, Flottmann was signed by Brunei DPMM FC for the 2024âÂÂ25 Singapore Premier League season. He made his debut from the starting lineup on 11 May 2024 against Young Lions in a 1âÂÂ2 away victory where he created an assist for Yura Yunos to score the winner of the game on the 38th minute.
Flottmann suffered a ruptured anterior cruciate ligament in a friendly match a month later which ultimately ended his stint at the Bruneian club.
On 20 July 2025, National Premier Leagues NSW side APIA Leichhardt FC announced the signing of Flottmann. His stay with the club from Sydney ended in early January 2026.
Flottmann subsequently signed for Avondale FC, reigning premiers of the NPL Victoria for the 2026 season.
In September 2015, Flottmann was called up to the Australian under-20 squad for the 2016 AFC U-19 Championship qualification, but he did not make an appearance in Australia's 3 matches. A year later, he was selected for the Australian under-20 squad for the 2016 AFF U-19 Youth Championship in Vietnam. He made 3 appearances in the group stage, playing in the 2âÂÂ0 victory over Cambodia, the 3âÂÂ1 victory over Indonesia, and the 1âÂÂ5 loss to Thailand.