Racing Cartagena Mar Menor Fútbol Club, known as Racing Cartagena MM, was a Spanish football team based in San Javier, in the autonomous community of Murcia.

Founded in 2007, it held home games at Estadio Pitín, with a capacity of 3,000 seats.

[3] In 2021, the club achieved promotion to the newly-formed Segunda División RFEF.

On 7 July 2023, Mar Menor moved to the city of Cartagena after the club reached an agreement with Cartagena FC to use their facilities; the club was also renamed to Racing Cartagena Mar Menor Fútbol Club, with Racing Murcia FC becoming their reserve team.

[4] In June of the following year, however, after being relegated from Segunda Federación, the club suffered another administrative relegation due to debts,[5] and subsequently went inactive after not registering for the Preferente Autonómica.