Gábor Kolosváry or Gabriel von Kolosvary (August 18, 1901 – December 23, 1968) was a Hungarian zoologist.
He worked at the Hungarian National Museum and was a specialist on the arachnids as well as fossil cirripedes and other crustacea.
He joined the University of Szeged in 1923 as an assistant and in 1929 he became a keeper at the National Museum, in charge of the spider collections.
He took a special interest in the river Tisza[1] and founded the magazine Tiscia in 1955 to cover research on its biology.
Kolosváry was involved in the study of the marine fauna of the Adriatic sea and took a special interest in cirripede systematics (particularly the balanomorpha).