Zelenko () is a Ukrainian language surname that is derived from the word "zeleny" ("зелений"), which means "green".
Alexander Zelenko (1871–1953), Russian architect Alexander Zelenko (equestrian) (born 1976), Belarusian equestrian Herbert Zelenko (1906–1979), American politician from New York Kateryna Zelenko (born 1980), Ukrainian diplomat Paula Zelenko (born 1957), American politician from Michigan Yekaterina Zelenko (1916–1941), Ukrainian fighter pilot Vladimir Zelenko (1973–2022), Ukrainian-American physician
See also