Melnik, Melnick or Melnyk (Russian or Ukrainian: Мельник; Belarusian: Мельнік) is a gender-neutral Slavic occupational surname of Ukrainian origin literally meaning "miller".[1] The surname may refer to:
- Association football
- Bohdan Melnyk (born 1997), Ukrainian football midfielder
- Ihor Melnyk (disambiguation) – multiple footballers
- Ivan Melnik (born 1991), Russian football forward
- Oleksandr Melnyk (born 2000), Ukrainian football defender
- Roman Melnik (born 1977), Russian football forward
- Serhiy Melnyk (disambiguation) – multiple footballers
- Vadym Melnyk (born 1980), Ukrainian football defender
- Viktor Melnyk (born 1980), Ukrainian football defender
- Other sportspeople
- Boris Melnik (1945–2016), Soviet sports shooter
- Evgenia Melnik (born 1988), Belarusian figure skater
- Faina Melnyk (1945–2016), Ukrainian discus thrower
- Galina Melnik (born 1970), Russian table tennis player
- Gerry Melnyk (1934–2001), Canadian ice hockey forward
- Larry Melnyk (born 1960), Canadian ice hockey defenceman
- Olga Melnik (born 1974), Russian biathlete
- Steve Melnyk (born 1947), American golfer
- Tetyana Melnyk (born 1995), Ukrainian sprinter and hurdler
- Antony Melnyk (born 1999), English average mountain biker
- Vitaliy Melnik, Soviet luger
- Yona Melnik (born 1949), Israeli judoka
- Business, politics
- Andriy Melnyk (disambiguation) – several people
- Christine Melnick (born 1950), Canadian politician
- Emma of Mělník (died 1005/06), Bohemian duchess
- Eugene Melnyk (1959–2022), Canadian businessman and owner of the Ottawa Senators
- John L. Melnick (1935–2013), Virginia lawyer and Democratic politician
- Joseline Peña-Melnyk (born 1966), American politician
- Nicholas Melnyk (1912–1973), Canadian politician
- Stanislav Melnyk (1961–2015), Ukrainian politician
- Valentyna Melnyk (born 1978), New Zealand marketing academic
- Fiction
- Danielle Melnick, fictional character on the television series Law & Order
- Herb Melnick, fictional character on the television series Two and a Half Men
- Music, films, literature and other media
- Aleksandr Melnik (1958–2021), Russian film director
- Allison Melnick (born 1971), American socialite and reality TV star
- Anton Melnik, Russian film producer
- Cameron Melnyk, lead singer for Canadian rock band State of Shock
- Daniel Melnick (1932–2009), American film producer
- David Melnick (1938–2022), American poet
- Elena Melnik (born 1986), Russian fashion model
- Ion Melnik (1935–2018), Russian music composer
- Jeff Melnyk, Canadian electronic music producer
- Lola Melnick (born 1982), Russian dancer, TV presenter and actress
- Lubomyr Melnyk (born 1948), composer and pianist of Ukrainian origin
- Mykhailo Melnyk (1944–1979), Ukrainian historian and poet
- Mitch Melnick (born 1959), Canadian radio sports announcer
- Natasha Melnick (born 1984), American actress
- Peter Rodgers Melnick (born 1958), American composer
- Yaroslav Melnyk (born 1959), Ukrainian/Lithuanian novelist, philosopher, and critic
- Pilots
- Bruce E. Melnick (born 1949), American pilot and astronaut
- Mykola Melnyk (1953–2013), Soviet-Ukrainian pilot
- Science, medicine
- Anton Melnyk, Ukrainian computer programmer
- Don Melnick (1953–2019), American biologist
- George Melnyk, Canadian historian, academic, and writer
- Joseph L. Melnick (1914–2001), American epidemiologist
- Rafi Melnick, Israeli economist and academic administrator
- Roderick Melnik, Canadian-Australian mathematician
- Tatiana Botkina-Melnik (1898–1986), Russian nurse, daughter of Eugene Botkin
- Vijaya Melnick (born 1937), American biologist
- Volodymyr Melnyk (born 1952), Ukrainian academic and philosopher