Axel Freiherr von Campenhausen (born 1934), German canon lawyer
Balthasar Freiherr von Campenhausen (1689–1758), Russian lieutenant general, participant of the Great Northern War and General-Governor of Finland in 1741–1743.
Balthasar von Campenhausen (1745–1800), Russian statesman
Balthasar von Campenhausen (1772–1823), Baron, Balthasar Freiherr von Campenhausen and Saaremaa, Mayor of Taganrog, Russian statesman, Privy Councilor, chamberlain.