Spanning the 1990s through the 2000s, the Mass Monster Era is defined by the pursuit of extreme size, conditioning, and mass. Bodybuilders like Ronnie Coleman and Dorian Yates pushed the limits of muscle growth, prioritizing size over the aesthetics of earlier eras. This period represents a shift towards a more extreme form of bodybuilding, where mass became the ultimate goal.
- Rhonda Lee Quaresma
- Sharon Bruneau
- Mark Dugdale
- Achim Albrecht
- Mustafa Mohammad
- Andrulla Blanchette
- Gayle Moher
- Don Youngblood
- Mohammed Benaziza
- Dayana Cadeau
- Heather Foster
- Francesca Petitjean
- Charlene Rink
- Dennis James
- Chris Dickerson
- Rich Gaspari
- Lenda Murray
- Bob Cicherillo
- Mike Matarazzo
- Chris Cook
- Helle Trevino
- Nancy Lewis
- Dennis Wolf
- Ed Corney
- Denise Masino
- Iris Kyle
- Flex Wheeler
- Cedric McMillan
- Nicole Bass
- Melissa Coates
- Robby Robinson
- Matt Mendenhall
- Jose Raymond
- Gustavo Badell
- Andreas Munzer
- Shawn Ray
- Ronny Rockel
- Vince Taylor
- Scott Wilson
- Lee Haney
- Mike Quinn
- Sandy Riddell
- Hidetada Yamagishi
- Gunter Schlierkamp
- Berry DeMey
- Victor Martinez
- Ronnie Coleman
- Toney Freeman
- Milos Sarcev
- Dorian Yates
- Rich Piana
- Lou Ferrigno
- Branch Warren
- Paul Dillett
- Danny Padilla
- Bob Paris
- Samir Bannout
- Nasser El Sonbaty
- Lee Priest
- Andreas Cahling
- Boyer Coe
- Gary Strydom
- Stan McQuay
- Tim Belknap
- Darrem Charles
- Dexter Jackson
- Jay Cutler
- Chris Cormier
- Porter Cottrell
- Kevin Levrone