ArjunaWP (アルジュナWP, Arujuna?), Class Name Archer (アーチャー, Āchā?), is an Archer-class Servant summoned by Ritsuka Fujimaru in the Grand Orders of Fate/Grand Order.

Arjuna is part of Hakuno Kishinami's army in Fate/EXTELLA LINK.

He is the Stray Archer (逸れのアーチャー?) summoned in the Waxing Moon Ritual of Fate/Samurai Remnant, allying with Master Miyamoto Iori.