Andrey Ershov

Andrey Petrovich Yershov (; 19 April 1931 – 8 December 1988) was a Soviet computer scientist, notable as a pioneer in systems programming and programming language research.

Donald Knuth considers him to have independently co-discovered the idea of hashing with linear probing. He also created one of the first algorithms for compiling arithmetic expressions.

He was responsible for the languages ALPHA In 1974, he was made a Distinguished Fellow of the British Computer Society.

He was involved with developing international standards in programming and informatics, as a member of the International Federation for Information Processing (IFIP) IFIP Working Group 2.1 on Algorithmic Languages and Calculi, which specified, maintains, and supports the languages ALGOL 60 and ALGOL 68. In 1981, he received the IFIP's Silver Core Award.

To the computer science community, he is mostly known for his speech Aesthetics and the Human Factor in Programming presented at the dinner at the AFIPS Spring Joint Computer Conference in 1972