There are multiple artists named Abaddon:

1. A melodic black metal band from Australia
2. A death metal band from Bulgaria
3. A death metal band from Brazil
4. A death metal band from Chile
5. A death metal band from the Czech Republic
6. A symphonic death metal band from Germany
7. A death/black metal band from the Netherlands
8. A heavy/power metal band from Mexico
9. A blackened death band from New Zealand
10. A death metal band from Poland
11. A hardcore punk band from Poland
12. Tony Bray, former drummer of black metal band Venom (UK)
13. A crossover thrash band from the U.S.
14. A black metal band from the U.S.
15. A thrash metal band from Scotland, UK
16. A death metal from Serbia
17. A progressive metal band from Trinidad and Tobago
18. A death metal band from New Mexico U.S.A. who released one album, Funkin’ Murderers, in 1995.
19. A gothic/visual/symphonic black metal from Norway
20. A death metal band from El Paso, Texas, USA that started in 2015. Have released a demo CDr titled, "Demo 2016", and an full-length CD titled, "Angelic Scorn".
21. An Argentinean melodic groove/death metal band from Neuquén, Neuquén and Cipolletti, Río Negro.

6. Abaddon (Ger) a melodic death band from… Germany

7. Abaddon (Holland), a blackened death band that released two full lengths entitled “death in magenta” and “into the twilight kingdom”

9. Abaddon (NZ) A Blackened Thrash band from Auckland, New Zealand. (Now broken up with two of the members going on to form Leatherhead

11. Abaddon (Pol) a punk rock band best known in the 80’s. Formed in 1982, Abaddon played the famous Jarocin festival in 1983. Before a short tour of former Yugoslavia led to the recording in Ljubliana and release of the excellent Wet Za Wet LP in 1985. The band also contributed two tracks to the legendary Jak Punk To Punk Polish compilation LP in 1986.
Band split in 1987. A couple of bootleg 7”s turned up in the mid-90s before they reformed in 2001, released Godzina Krzywd LP in 2004 and called it quits in 2005.

12. Abaddon (UK) AKA Tony Bray, former drummer of black metal band Venom. Left Venom in 1999 to pursue a solo career and released the album I Am Legion in 2000. Unfortunately Abaddon’s industrial metal sound did not prove popular and this is his only solo effort to date.

19. Gothic/Visual/Symphonic Black Metal

The idea of Abaddon was started on 06/06/2006 under the name XiV-XviiJ, as a gothic medieval atmospherical project. The members were XiV; and XviiJ, currently known as Ayakashi, and Karael (active from 2004 to present day)
Their works were never publicly published under the name XiV-XviiJ being that they wanted to make a personal gateway, and simply did not care to be noterized.
In 2006 and again in 2008 their works were used in various artist albums as Intros and atmospherical midways. Their works also appear in several obscure movies. They've always remained anonymous or used pseudonyms

Ayakashi has also created under another name many of the gothic castle/graveyard/creepy forest pictures you can find on the internet and people use on a daily basis, but has never received any credit for these images.

In 2011 they changed the name to Abaddon, and Zakai joined the project.
They have also had a certain evolution in the idea, the sound will now be Gothic/Symphonic Black Metal. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.