Dina Meyer (born December 22, 1968) is an American film and television actress, best known for her roles as Kara on DragonHeart, Dizzy Flores in Starship Troopers and Detective Allison Kerry in the Saw films.

She began her career appearing in a recurring role on the Fox teen drama series Beverly Hills, 90210 (1993–94), before landing a leading role opposite Keanu Reeves in the 1995 film Johnny Mnemonic.

She has acted in a number of roles in films Dragonheart (1996), Starship Troopers (1997), Bats (1999), D-Tox (2002), Star Trek: Nemesis (2002), Crimes of Passion (2005), The Boy Next Door (2008), Piranha 3D (2010), the Saw film franchise, and Unbelievable!!!!! (2020).

On television, she starred as Barbara Gordon/Oracle/Batgirl in the short-lived series Birds of Prey (2002–03) and was a regular on Secret Agent Man (2000), Miss Match (2003), Point Pleasant (2005), ABC's Scoundrels, and Sequestered (2014). She's had recurring roles on Friends, Six Feet Under, NCIS, 90210, NCIS: LA, The Affair, The Magicians, and All American. She's also had a number of guest roles including CSI, CSI: Miami, Monk, Criminal Minds, Burn Notice, The Mentalist, Castle, The Glades, The Flash, and All Rise.

Conflicting information on the Internet gives her birthdate as both December 22, 1968 and June 15, 1969, however; Meyer has confirmed on Twitter that her birthdate is December 22.