Nedryhailiv (Ukrainian: Недригайлів) is a rural settlement situated on the Sula River in Sumy Oblast, northeastern Ukraine.

[1] The town, like many localities situated in the Eurasian Steppe, is mostly flat with no nearby mountains or valleys.

Large swaths of the land to the south, east, and west of the Nedryhailiv township are dedicated to agriculture while the town's northern border is formed by the Sula River.

Most of the town center is hooked up to local water mains that connect to a freshwater spring located more than 700 meters underground.

According to the official regional history, on the territory of the former Nedryhailiv Raion settlements were formed during the late Paleolithic Era (as early as 15,000 years ago), lasting through the Bronze Age and into early Iron Age.

Archaeological excavations in 1972 uncovered artifacts from this period, including early Slavic pottery, a beaded necklace, and remnants of metallic weaponry.

Though the library at one time had collections of literature printed before the Russian Revolution, the oldest books of its current collection were published no earlier than 1937 due to the loss of books during the German occupation of World War II.

Its seating capacity for more than 3,000 people and its riverside location makes the stadium an ideal venue for the traditional event, in which young women dress as rusalki (water nymphs) and light bonfires, around which they subsequently dance and invite others to dance with them.

Holos Posullia (Голос Посулля) was founded in March 1931 by the local Soviet administration.