Sintsov
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