Saionji (西園寺) is a Japanese family name of former kuge descent. People with the name include:
The Saionji family, kuge family. Prince Saionji Kinmochi, 12th and 14th Prime Minister of Japan Empress Saionji, wife of Emperor Go-Fukakusa
Fictional characters Chiaki Saionji of Demon Ororon Kaoru Saionji of Gakuen Heaven Kotoka Saionji of The Idolmaster: Cinderella Girls Kyoichi Saionji of Revolutionary Girl Utena Sekai Saionji of School Days Reimi Saionji of Star Ocean: The Last Hope Hiyoko Saionji of Danganronpa 2: Goodbye Despair Rika Saionji of Yamada-kun and the Seven Witches Takato Saionji of Buriki One Ukyo Saionji of Dr.Stone Enju Saion-ji of Moe! Ninja Girls by NTT Solmare