Notable people with surname Sintsov (Cyrillic: Синцов) include:

• Alexei Sintsov (born 1995), Russian pair skater
• Anton Sintsov (born 1985), Russian road and mountain bike racer
• Dmitrii Sintsov (1867-1946), Russian and Soviet mathematician

Notable people with surname Sintzoff include:

• Michel Sintzoff (1938-2010), Belgian mathematician and computer scientist

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