Eugene Victor Hoglan II (born August 31, 1967) is an American drummer. He is acclaimed for his creativity in drum arrangements, including use of abstract devices for percussion effects and his trademark lengthy double-kick drum rhythms. Though his playing style is very technically demanding, he retains high accuracy at extreme tempos, earning him the nicknames "The Atomic Clock" and "Human Drum Machine".

Hoglan has played for numerous metal bands across his career. He first established himself as the drummer of Dark Angel in the 1980s, and began to expand his repertoire in the early 1990s after that band split up. Since then, he has played for Death, Strapping Young Lad and the solo projects of its frontman Devin Townsend, Fear Factory, Dethklok and Testament, amid two Dark Angel reunions and participation in several other side projects. He released his own album, the Gene Hoglan: The Atomic Clock DVD, and served as Testament's longest-serving drummer.

Hoglan was featured on the cover of Modern Drummer magazine in November 2010. He also won Terrorizer magazine's Reader's Poll for Best Drummer 2010, and Modern Drummer magazine nominated Hoglan for Best Metal Drummer, and Best Recorded Performance (for Dethklok's Dethalbum II) on their 2011 ballot. He was nominated for Best Drummer in Revolver magazine's 2010 Reader's Poll.

Hoglan got his first drum kit when he was 13 and is completely self-taught. He started jamming along to his Kiss and Rush records, with Peter Criss and Neil Peart being his early influences. Later Cozy Powell, Tommy Aldridge, Robb Reiner of Anvil, Rob "Wacko" Hunter of Raven and Phil "Philthy Animal" Taylor got him into double bass drumming.

In 1983, Hoglan began his music career as a roadie (lighting engineer) for the thrash metal band Slayer, where he also played the drums during concert soundchecks. He also did backing vocals on the song "Evil Has No Boundaries", from the first Slayer album Show No Mercy. He contributed in the recording of Haunting the Chapel, holding Dave Lombardo's drum kit together while recording "Chemical Warfare" because there was no carpet in the studio, said drum kit including a china cymbal owned by Hoglan. He became an influence in Lombardo's drumming style and speed. Lombardo had just had the double bass added to his kit and it was the first double bass Hoglan ever played. Lombardo was impressed with Hoglan's playing, and Hoglan gave Lombardo tips regarding the use of the double kick drum.

In 1984, Hoglan was part of the band War God with Michelle Meldrum. At the end of the same year he was asked to join the thrash metal band Dark Angel as the drummer. He penned most of the lyrics for Dark Angel's next three albums. He achieved greater fame during the mid-1990s playing with Death, at the same time that bandleader Chuck Schuldiner was taking that group into a more progressive style. Schuldiner stated that there had previously been animosity between himself and Hoglan, but the two eventually were able to reconcile their differences. He said: "It was just screwed-up, stupid shit that happened when Death and Dark Angel toured together, and I'm glad we were able to get past it. I wanted Gene to play on the record because he has a lot of experience, and he has his own unique style of playing."

Subsequently, he recorded one album with the thrash metal band Testament, and made the acquaintance of Canadian multi-instrumentalist Devin Townsend, forging a lasting friendship. Around this time, coming off of the final tour he performed with Death, Hoglan was approached by Slayer to replace a departing Paul Bostaph. Jon Dette, however, took the position, much to Hoglan's approval. He would go on to record several albums with Townsend, both as part of the speed/industrial/death metal band Strapping Young Lad and under Devin Townsend's name.

Hoglan was also part of thrash metal band Tenet, a side project of Strapping Young Lad guitarist Jed Simon, from 2003 to 2007. Hoglan left the band on amicable terms in January 2007. He was replaced by Adrian Erlandsson only to return to the group in June of the same year. Hoglan recorded his drum parts for the entirety of the following album in a mere two days.^{[citation needed]}