Lincolnshire's 14 Grammar schools are 11-18 selective schools that are open to all children who qualify, subject to sufficient places and suitable transport being available. They provide a distinctive academic curriculum that stretches able children, and offers a wide range of educational opportunities, both in and out of the classroom.

The grammar schools are non-fee paying state schools and play a key part in secondary school provision across the county. They fall currently into two categories, selective academies who are responsible for their own admissions and community schools who adopt the admissions arrangements agreed by the Local Authority. The Local Authority is not responsible for selection arrangements and testing but does coordinate the admissions process through which parents make applications to the schools of their choice.