Daniel Joseph Donegan (born August 1, 1968) is an American musician who is the guitarist, keyboardist and one of the founding members of heavy metal band Disturbed.

[4][5] According to Disturbed's DVD titled M.O.L., Donegan got a job with his father doing construction work.

David also mentions that "He's [Donegan], in my opinion, you know, among the best in existence, and he doesn't give himself enough credit".

Early on with his career with Disturbed, Donegan played Gibson Les Paul Standards and SGs.

In 2005, Washburn Guitars built Donegan his own signature model called the Maya, named after his daughter.

In 2016, Dan and Orion Guitar Gear teamed up to sell a limited quantity of his custom straps to Disturbed fans.