Legio IV Scythica was a Roman legion levied by Mark Antony around 42 BC, for his campaign against the Parthian Empire, hence her other cognomen, Parthica.

• 第四"西徐卡"军团，是由马克-安东尼组建于公元前42年，前去参加他进攻帕提亚帝国的战役。因此该军团也获得了"帕提卡"的称号。