Daniel Adam Lilker (born October 18, 1964) is an American musician best known as a bass player, but also guitarist, pianist, drummer, and vocalist.

Lilker was the bassist for the thrash metal band Nuclear Assault and was a founding member of Anthrax with Scott Ian.

Despite this, Lilker has remained close to the band, receiving a co-writing credit for at least one song on their next two albums, Spreading the Disease (1985) and Among the Living (1987), and he was offered to fill in for Bello on their spring 2024 tour dates.

He has also played bass with Exit-13, Malformed Earthborn,[4] The Ravenous, Overlord Exterminator,[5] Venomous Concept, Crucifist,[6] Nokturnal Hellstorm,[7] Nunfuckritual[8] and Extra Hot Sauce.

[14] However, Lilker remained a member of Nuclear Assault, who released new material in 2015 for the EP Pounder, and had continued performing live sporadically until their breakup in 2022.