Bi-Visibility Day will be marked in Oxford on Saturday 23 September with a special flag flown over the Town Hall.
The day celebrates bisexuality, bisexual history, and the bisexual community and culture.
It is the second year that the City Council has flown the Bi-Pride Flag – which is pink, purple and blue – over the Town Hall’s 1930s extension (above Edinburgh Woollen Mill).
The City Council also marks Oxford Pride in June and International Trans Day of Remembrance in November by flying the special flags for these occasions.
Labour Councillor Tom Hayes, whose Executive Board responsibilities include tackling hate crime, said: "Oxford and Britain are by almost every measure better places to live as LGBT people, but sadly there hasn't been the same speed and scale of progress for all parts of the LGBT community.
“Bi and trans people in particular feel like they are being left behind. For example ,bi characters are hard to come by in popular culture.
“As a council we seek to create a cohesive and tolerant community in the city and to understand the particular challenges facing different groups. Flying this flag has come from an initiative by bisexual people working within the city and we are very glad to be supporting them and International Bi Visibility Day.”
For more information about Bi Visibility Day, visit: www.bivisibilityday.com.