Evangelion Mark.06 (エヴァンゲリオン Mark.06[?], "Evangelion Māku Shikkusu") is one of the Evangelion appearing in the Rebuild of Evangelion movie series. It first appears at the end of Evangelion: 1.0 You Are (Not) Alone while still under construction at the Tabgha Moon Base, its first actual sortie takes place during the climax of Evangelion: 2.0 You Can (Not) Advance, piloted by Kaworu Nagisa. It reappears in Evangelion: 3.0 You Can (Not) Redo as an autonomous unit.

Mark 06 is the first Mark Series unit introduced to the Rebuild tetralogy. The final armored Mark.06 is a deep blue with yellow trim. The shoulder pylons are uniquely curved and the units torso is elongated featuring an extra set of chest plate compared to other production model. The horned helmet, which bears a strong resemblance to Armaros's, has a red visor covering the eye holes. The entry plug appears to be designed to provide a noticeably higher field-of-vision for the pilot. The Evangelion has shown to be capable of levitation while bearing an Angelic halo, which—in addition to the dialogue between SEELE, Gendo, and Fuyutsuki—hints at extremely potent capabilities.

Evangelion Mark.06 was constructed at NERV (Rebuild)'s lunar 7th Branch, Tabgha Base. It initially appears unfinished, with its body covered in a rubbery white material,[1] and a purple mask covering its face, bearing the logo of SEELE (Rebuild) with two dark holes at the top which marks under them that make it seem as if they were crying. The morphology of the head and neck is very similar to Second Angel Lilith, although the more defined body, along with what appears to be a core visible beneath the fabric, is closer to a normal Evangelion. An IV-like device labeled BTB is connected to the Evangelion's left arm.

Later, the white cover is removed and the Evangelion undergoes the process of outfitting. The exposed skin on the head is dark gray while the body is tightly covered on a darker fiber that resembles muscle tissue. The mask remains affixed to the face, although it appears slightly modified, with the SEELE logo taking more space than before and the crying marks under the holes at the top removed. The middle part of the mask, approximately where the eyes would be, is hidden by a provisional covering held tightly by external wires as the helmet is readied for application.