Mitsuko Aoyama
| Mitsuko Aoyama | |
|---|---|
| Countess of Coudenhove-Kalergi | |
| Born | 7 July 1874 Ushigome, Shinjuku, Tokyo, Empire of Japan | 
| Died | 27 August 1941 (aged 67) Mödling, Austria | 
| Noble family | Coudenhove-Kalergi (by marriage) | 
| Spouse(s) | Heinrich von Coudenhove-Kalergi | 
| Father | Kihachi Aoyama | 
| Mother | Tsune Aoyama | 
Mitsuko Thekla Maria, Countess of Coudenhove-Kalergi (German: Mitsuko Thekla Maria Gräfin von Coudenhove-Kalergi; 7 July 1874 – 27 August 1941), formerly known as Mitsuko Aoyama (青山光子), was one of the first Japanese people to immigrate to Europe, after becoming the wife of an Austro-Hungarian diplomat, Heinrich von Coudenhove-Kalergi, in Tokyo. She was the mother of Richard von Coudenhove-Kalergi and the Catholic author Ida Friederike Görres (née von Coudenhove-Kalergi).