Chthonic is a Taiwanese black/extreme metal band.

"ChthoniC's melodies can be characterized as extreme metal with a central inspiration and folklore coming from the black metal movement. Chthonic uses the traditional Chinese stringed instrument, Er- hu, which can be compared to an eastern violin. The sound of the Er-hu is one of grief and sorrow, which Chthonic accompanies with heavy drums, guitar strings blending into a harmony.

The music undulates and flows with the tempo of ancient mythology, and often, through lyrics, conveys an abbreviated version of a traditional myth or legend. Freddy Lin, lead vocalist, uses his voice to tear and rip melodies, using both ancient and modern language and energy which mixes easily with the music. The music swings from cool despair, to the heat of shock and anger. By wavering between these emotions Chthonic is unparalleled in the world of black metal song composition."

They are also known to be the first Taiwanese metal band to gain international and regional recognition and have won numerous awards. 2003, they won the Best Band Award at the Taiwan Golden Melodies Award Ceremony.

They have been chosen for Ozzfest 2007, it being their first full U.S. Tour. It is also a Freefest, a free event for fans.