Laçin is a district of Çorum Province in the Black Sea region of Turkey. It is located at 29 km from the city of Çorum. It covers an area of 214 km², and the elevation is 720 m. Population is about 9,425 of which 2,153 live in the town of Laçin, and the rest in the surrounding villages (2000 census). The mayor is Ünal Gevşek (MHP).
The climate has features of both the dry Central Anatolian plain and the Black Sea coast; winters are cold, summers are hot and dry, with most rainfall in spring. The district is partially mountainous and wooded. Being so close to the city of Çorum the district has little economic strength of its own; people live on growing grains, chickpeas and other crops.
The town of Laçin provides the district with high schools, a hospital and other basic amenities.