This year marks the 20th anniversary of the event, one of the largest and longest running lesbian, gay, bisexual and transgender (LGBT) festivals in the world.
Organisers say it has been a constant fixture within the Scottish cultural calendar presenting thoughtful, challenging and entertaining work, and has consistently provided a platform for the works of new generations of writers and performers.
This year's festival runs from today until Saturday, November 9.
It features a range of plays and events aimed at celebrating the LGBT community in the city and working towards promoting wider equality, tolerance and understanding.
Yesterday's civic reception, hosted by Lord Provost Sadie Docherty, included speeches by Glasgay producer Steven Thomson and Bailie Martin Docherty.
Bailie Aileen Colleran, Glasgow City Council's executive member for communities, said: "This year's event is obviously a very special one as it marks the festival's 20th anniversary.
"Each year the Glasgay festival brings the very best of new and established LGBT work to the city and as it celebrates its 20th anniversary with fantastic programme of events, this year looks set be a tremendous success."
Glasgay was founded in the city in 1993 by Cordelia Ditton and Dominic D'Angelo.
The festival has been under the stewardship of Steven Thomson since February 2004. The festival receives regular public funding from Creative Scotland and Glasgow City Council, both of whom recognise its strategic importance in the delivery of equality outcomes for diverse communities.
This year's events include The Maw Broon Monologues, a play commissioned by Jackie Kay and directed by Liz Carruthers. It runs at the Tron Theatre from October 30 until November 9.
There is also a thought-provoking play called Cured, which tells the tale of a 40-year-old woman who seeks treatment to cure her of her homosexual tendencies.
A range of support services are also on offer throughout the festival. For the full schedule, log on to www.glasgay.co.uk