Rodnay Zaks (born 10 February 1946, Paris) is a French-born American author of many books on computer programming, including the seminal Programming the Z80 and Programming the 6502. He is the founder of independent computer book publisher Sybex and was its president and chief executive officer (CEO) until its takeover by John Wiley & Sons in May 2005. Zaks has been a director of Association for Computing Machinery's (ACM) Special Interest Group on Microarchitecture (SIGMICRO), and founded the non-profit organization EUROMICRO.