Chudnovsky is an Ashkenazi Jewish surname of Ukrainian origin (meaning "from/born in Chudnov"). It may refer to
Chudnovsky brothers, David and Gregory, mathematicians Chudnovsky algorithm is a fast method for calculating the digits of David Chudnovsky (politician) in Canada Maria Chudnovsky, mathematician Chudnofsky, the main villain of The Green Hornet (2011 film)