Xu Yixin (Chinese: 徐以新) (November 14, 1911 – December 30, 1994) was an associate of the 28 Bolsheviks. He is the sometimes known as the 29th Bolshevik. Because he alternated his political stances between left and right wing, the group is sometimes called the 28 and a half Bolsheviks. He was born in Zhejiang Province and educated at Moscow Sun Yat-sen University in the Soviet Union. He joined the Communist Party of China in 1930. After the founding of the People's Republic of China, he served as ambassador to Albania (1954–1957), Norway (1958–1962), Syria (1962–1965) and Pakistan (1979–1982).