The Hadiach Regiment (Ukrainian: Гадяцький полк, romanized: Hadiatskyi polk) was one of then territorial-administrative subdivisions of the Cossack Hetmanate.

The regiment's capital was the city of Hadiach, now in Poltava Oblast of central Ukraine.

Under the hetman Ivan Briukhovetsky, Hadiach county became a new Zinkivskyi Regiment.

During different years of its existence the regiment was composed of 9 to 18 sotnias.

All of the regiment's territories were included into the Chernigov Viceroyalty.