Kuusinen was married several times, and had numerous children, such as Aino Elina (born 1901), Hertta Elina (born 1904), Esa Otto Wille (born 1906), Riikka-Sisko (born 1908), Heikki (born 1911) and Taneli (born 1913).
Most of his offspring remained with his first wife Saima Dahlström.
In early 1920s Kuusinen married Aino Sarola.
In 1936, he fell in love with an Armenian, Marina Amiragova, who was 30 years younger than he; and they stayed together until Kuusinen's death.
The couple never married.
 They had a daughter in 1937 who died at the age of eleven months.

Kuusinen died age 82 on May 17, 1964, in Moscow.
 His ashes were buried in the Kremlin Wall Necropolis.

He was survived by his daughter Hertta Kuusinen, a leading communist politician in Finland during the Cold War.
Kuusinen was married several times, and had numerous children, such as Aino Elina (born 1901), Hertta Elina (born 1904), Esa Otto Wille (born 1906), Riikka-Sisko (born 1908), Heikki (born 1911) and Taneli (born 1913). Most of his offspring remained with his first wife Saima Dahlström. In early 1920s Kuusinen married Aino Sarola. In 1936, he fell in love with an Armenian, Marina Amiragova, who was 30 years younger than he; and they stayed together until Kuusinen's death. The couple never married.  They had a daughter in 1937 who died at the age of eleven months.
Kuusinen died age 82 on May 17, 1964, in Moscow.  His ashes were buried in the Kremlin Wall Necropolis.
He was survived by his daughter Hertta Kuusinen, a leading communist politician in Finland during the Cold War.
Otto Wille Kuusinen