Christian Francis Olde Wolbers (born 5 August 1972) is a Belgian musician, record producer, and songwriter. He is the current bassist and backing vocalist of the rap metal/nu metal band Powerflo. He is also a former bassist of the thrash metal band Vio-lence and hardcore punk/crossover thrash band Beowülf, and a former bassist, guitarist and backing vocalist of the industrial metal band Fear Factory.

Olde Wolbers was born in Antwerp, Belgium, and moved to the United States in 1993. He was asked to join Fear Factory in December 1993 as a bass player. He recorded five albums with them. The group disbanded in 2002 and when it reformed in 2003, Olde Wolbers had switched to guitar, replacing Dino Cazares.

Olde Wolbers is the only bassist that played on a Fear Factory album, as the other bassists only played live (with Dino Cazares recording the bass in the studio).

In 2003, he was offered a position of bassist in Ozzy Osbourne's solo band after he jammed with Ozzy, guitarist Zakk Wylde and drummer Mike Bordin for a few weeks. He eventually turned down this offer in order to fully concentrate on Fear Factory.

In 2006, Olde Wolbers played three shows with Korn on their European tour.

In 2008, he formed a new band, Burn It All, which also feature Raymond Herrera (drums) and former Damageplan singer/Halford guitarist Patrick Lachman. They posted a demo sampler on its MySpace page.

In 2009, Olde Wolbers and drummer Raymond Herrera parted ways with Fear Factory when vocalist Burton C. Bell chose to reform Fear Factory with Dino Cazares, bassist Byron Stroud, and drummer Gene Hoglan.

Olde Wolbers has a project Arkaea with fellow ex-Fear Factory drummer Raymond Herrera and Jon Howard and Pat Kavanagh of the band Threat Signal. On 14 July 2009, Arkaea's debut album, Years in the Darkness was released. He also played with Beowülf and co-produced their 2011 album Jesus Freak.