The EDM-GA-02 Gundam Lfrith Thorn (ガンダム・ルブリス・ソーン Gandamu Ruburisu Sōn?) is a mobile suit introduced in Mobile Suit Gundam the Witch from Mercury. It is piloted by Norea Du Noc.

A Gundam-type mobile suit provided to the anti-Spacian organization Dawn of Fold. It was developed and manufactured by the once-defunct Ochs Earth Corporation, with support from the Space Assembly League for the purpose of suppressing the Benerit Group.

Like the Lfrith Ur, this unit is a heavily modified version of the XGF-01 Gundam Lfrith Pre-Production Model. Its peculiar design featuring long arms and short legs was implemented to allow the Lfrith Thorn to withstand the most intense combat situations and gives the unit a very stable center of gravity. The unit comes equipped with a Beam Diffuse Gun that excels at providing suppressive fire over a wide area. It exhibits qualities distinct from that of its sibling Lfrith Ur, by primarily being used for backup roles.