Pharantzem, also known as P’arhanjem; Parantzem; Pharandsem; Paranjem and Parandzem of Siwnik’ (Siunik) (Armenian: Փառանձեմ, flourished 4th century – died winter 369/370) was a Queen of Armenia by marriage to Arsaces II (Arshak II). She was regent of Armenia during the absence of her spouse and son in 368–370, and is famous for her defense of the fortress of Artogerassa against Persia.