Kevin Graham Ogilvie (born December 5, 1962), known professionally as Nivek Ogre, is a Canadian musician, performance artist and actor, best known for his work with the industrial music group Skinny Puppy, which he co-founded with cEvin Key. Since 1982, he has served as Skinny Puppy's primary lyricist and vocalist, occasionally providing instrumentation and samples. Ogre's charismatic personality, guttural vocals and use of costumes, props, and fake blood on stage helped widen Skinny Puppy's fanbase and has inspired numerous other musicians.

In 2001, he formed the electronic music group ohGr along with longtime collaborator Mark Walk. Originally named W.E.L.T., ohGr has released five studio albums since 2001, three of which have placed on Billboard's Dance/Electronic Albums chart. Ogre has also been involved with several other musicians including the Al Jourgensen bands Ministry and Revolting Cocks, Pigface and Rx with Martin Atkins, and KMFDM.

Ogre has on several occasions worked as an actor in low-budget horror films. He appeared as Pavi Largo in the rock opera film Repo! The Genetic Opera, as well as Harper Alexander in the comedy-horror film entitled 2001 Maniacs: Field of Screams. Ogre was reunited with Repo! director Darren Lynn Bousman for the 2012 musical short film The Devil's Carnival and its sequel Alleluia! The Devil's Carnival. In 2014, he starred in the Canadian film Queen of Blood.