Manchester will see officers and staff from 17 police forces and policing organisations walking in Police with Pride on Saturday.
Over 200 officers and staff from across the country will lead the parade as Greater Manchester Police (GMP) celebrates its 10th anniversary of taking part in Manchester Pride.
Senior officers who will be participating include Chief Constable Sir Peter Fahy, Assistant Chief Constable (ACC) Steph Morgan and Lancashire's ACC Andy Rhodes.
GMP mascots Constable Cub and PC Pippa will also be there to join in the celebrations.
The parade entry is organised by Police with Pride, which consists of Lesbian, Gay, Bisexual and Transgender (LGBT) representatives from forces across the North West who organise and promote the event nationally.
Darrelle Lynch, coordinator of GMP's Lesbian and Gay Staff Affiliation (LAGSA), said: "This year has seen another fantastic response, with an increase in the numbers taking part and the number of police forces represented. It shows that confidence is increasing among our LGBT staff, who will again walk through the streets of Manchester proudly.
"Taking part in Pride will hopefully send out a strong message to LGBT communities that you can be gay or trans and work for the police. It should also give them confidence to talk to the police and report crimes in the knowledge that they will be taken seriously. We are committed to erasing hate crime in our communities, and anyone who has been targeted because of their sexual orientation or gender identity should always tell us, as we will take action."
Chief Constable Sir Peter Fahy said: "This year's parade is dedicated to the code-breaking mathematician and computer scientist Alan Turing, whose work during the Second World War was vital, and whose sexuality resulted in a criminal prosecution in 1952. It's worth remembering how far we have come, and that it is totally unacceptable for people to be treated in this way. Manchester Pride is a very important event for GMP and I am especially proud that our officers and staff, myself included, will be leading the parade this year."
The GMP float for this year's parade will display banners encouraging people to report hate crime, and explaining that the offence covers five main areas - disability, gender-identity, race, religion or faith and sexual orientation.
To report hate crime call police on 101 or Crimestoppers anonymously on 0800 555 111.
Use 999 only in emergencies where there is a threat to life or property or a crime in progress.