25th Anniversary may refer to:

Silver wedding anniversary

The Phantom of the Opera at the Royal Albert Hall

Albums

25th Anniversary, by Diana Ross and The Supremes, 1986

25th Anniversary, by The Temptations, 1986

25th Anniversary (Wolfe Tones album), 1989

25th Anniversary, by Magnolia Jazz Band, 1998

25th Anniversary, by Bagatelle (band), 2004

25th Anniversary, by Pasadena Roof Orchestra, 2008

25th Anniversary, by The Nerves, 2001

25th Anniversary Album (Shirley Bassey album), 1978

The 25th Anniversary Album (Lee Kernaghan album), 2017

25th Anniversary Collection, by K.C. & The Sunshine Band, 1999

The ★ Collection: 25th Anniversary Edition, by The Monkees, 1992

The Twenty-fifth Anniversary Anthology, by The Fixx, 2006

Unarmed – Best of 25th Anniversary, by Helloween, 2009

Interpretations: A 25th Anniversary Celebration, by The Carpenters, 1995

25th Anniversary Ultimate Best -The One-, by Luna Sea, 2014

25th Anniversary