They show happy times at the city’s bars and nightclubs in 2003 and 2004.
Kingdom, Gatecrasher, Stardust and Reflex are among the lost venues which feature.
But some are still going strong 20 years later, like The Leadmill, Forum and Corporation.
This retro photo gallery captures friends and couples creating memories at the bar or on the dancefloor.
Perhaps they will rekindle treasured memories of special nights out, which might be a bit hazy.
1. Fun at Kingdom
On the dancefloor at Sheffield's Kingdom nightclub in 2004 | Sheffield Newspapers Ltd Photo: Cher Permaul
2. Chilling out at Hush
Lucy, Adam, Jane, Emma and Sarah chilling out at Hush, Sheffield, in 2004 | Sheffield Newspapers Ltd Photo: Cher Permaul
3. A night to remember at Varsity
Lloyd, Graham, Matt, Pete, Richard and Paul at Varsity, Sheffield, in 2004 | Sheffield Newspapers Ltd Photo: Cher Permaul
4. Fun times at Bar Coast
Holly Johnson (left) and Henriette Foster enjoy a drink at Bar Coast on West Steet in 2003 | Sheffield Newspapers Ltd Photo: Cher Permaul