Fans of Brighton & Hove Albion have filed a report to the Football Association following alleged cases of homophobic chanting during the club's matches.
The report, compiled by the Brighton and Hove Supporters Club and the Gay Football Supporters' Network, claims that fans have been subjected to homophobic abuse during 57% of their games.
The two organisations said in a statement: "Brighton & Hove Albion Supporters' Club has spent over 15 years trying to get the authorities to take this regular abuse of one club's fans seriously.
"We would like our fans to be able to go to games with kids or their grandparents and not hear much of the stuff we are subjected to, it's our basic human right.
"Our campaigning with the help of the Football Supporters' Federation has led to 'homophobic abuse' being included in the list of unacceptable behaviour in ground regulations, yet many clubs, their stewards and their fans do not seem to know what constitutes 'homophobic abuse'."
The 2011 census revealed that Brighton, which is often referred to as the "gay capital" of Britain, has the highest number of civil partnerships in the UK.