Founded in 1976 as Quartz Football Club in
Kozhikode,
Kerala and since has been growing up step by step from district to state to national level. The Quartz Academy was incorporated in 2009. In December 2011, they were officially certified by the
All India Football Federation to participate in the I-League 2nd Division. For the first time in
2012 I-League 2nd Division, Quartz FC participated but failed to make an impression. They only got one point in the group stage thereby failing to get promotion. In 2012–13 season, Quartz FC signed
I-League players like
Rino Anto,
Sabas Saleel, K. Noushad, Manoj Manoharan, Sherin Sam, Kamardeep Singh, Suji Kumar,
J. Prasad, P.M. Britto, Salil Usman and Ajmaluddin. Club also signed the top-scorer and player of the tournament at the
2012 Santosh Trophy V.V. Farhad. They appointed Assistant coach
Bino George of
Chirag United Club Kerala. Later withdrew from the
2013 I-League 2nd Division due to financial instability. Club managed to win Kozhikode District League back to back in 2011 and 2012. Later in
2013–14, Quartz played with their academy side in the very first edition of
Kerala Premier League. After making a late entry in
2017–18 Kerala Premier League season, the club finished as runners-up after losing to
Gokulam Kerala in final. They had withdrawn from two editions of
Kerala Premier League (
2016–17,
2018–19) due to financial issues. In November 2020,
English Premier League Club
Sheffield United have taken over Calicut Quartz and rebranded it as Kerala United FC. United World Group, the umbrella firm holding Sheffield, said in a statement that it envisages to make Kerala United a competitive, community-focused football club playing at the highest level possible in Indian football. P. Haridas, who owned Calicut Quartz FC, is also the president of the Kozhikode District Football Association (KDFA), said a Premier League club coming to the state will bring major changes to Kerala football. Company director Akshay Das said: "We're looking for an overall development in the state, especially in Malabar." As Kerala United, they participated in the
2020–21 Kerala Premier League and qualified for the knockout stages after finishing second in the Group-B with 12 points. In the semi-finals, regular time couldn't separate
Gokulam Kerala and Kerala United, match ending goalless. They lost 4–2 on penalties at the
Thrissur Municipal Corporation Stadium. In that season, they participated in
Independence Day Cup in Assam and finished as runners-up, losing to
Assam State Electricity Board SC by 4–3 in penalties. In October 2022, Nigerian-born naturalized Indian manager Saheed Ramon was appointed head coach. In 2023, they participated in
Stafford Challenge Cup in Bangalore. Kerala United won their first ever
Kerala Premier League title in
2022–23, defeating Gokulam Kerala B in final. In August 2023, Kerala United gained
I-League 3 spot, ahead of the beginning of its
inaugural season. In that tournament, the club finished in fourth place in final round play-off, missed the opportunity of qualifying to
I-League 2. They were reinstated to the
2024–25 I-League 3. == Club crest and kits ==