Thomas Adams School is a coeducational secondary school, boarding school and sixth form in Wem, Shropshire, England. The school takes pupils from ages 11–18 and currently has just over 1,300 on roll. The school has the Schools for Health Award and in 2002 obtained Media Arts College status.The school is located on a 30 acre site split across 2 campuses which are connected. The Lowe Hill site is the location of the secondary school (11-16) whilst the Noble Street site is the location for the sixth form and adjacent boarding houses. The boarding house can accommodate up to 65 students and is one of only 32 state boarding schools in England.

The school was founded in 1650 by Sir Thomas Adams, the Lord Mayor of London in 1645, who was described by the diarist Samuel Pepys as a "comely old alderman". He was a Sheriff of London, Master of the Company of Drapers and an MP. He was a staunch royalist, who was imprisoned in the Tower of London for his royalist sympathies but was later sent by Parliament to the Hague in 1660 to wait upon King Charles II who was about to be restored to the throne. He also paid for the Bible to translated into Persian.

Adams Grammar School merged with Wem Secondary Modern School in 1976 to form Adams School, later named Thomas Adams School.

In March 2020 the school joined The Priory Trust. The Priory Trust was renamed to the 3-18 Trust.

The school is rated (in 2014, 2017 and 2023) by Ofsted to be good. The boarding house was rated as good in 2023 by OFSTED The school has a strong connection with the Drapers Company, an ancient London guild who nominate two governors to sit on the school's governing body. The Drapers Company is well known for its educational connections and charitable contributions, it helps support a number of schools and universities which have historical links with the company.

• Samuel Garbet, topographer and local historian of Wem, was second master at Wem Grammar School 1712-42, retiring after declining the school headship.

Although there is no active alumni association, over 1,600 ex-pupils of Wem Modern School, Adams School and Thomas Adams School are members of the Facebook group Adams School Wem Nostalgia Group.

Notable past-pupils of the Thomas Adams School include:

• Peter Jones, actor
• Sandy Lyle, golfer
• Sir Henry Maddocks, lawyer/politician
• General Sir Charles Warren
• Sir John Bickerton Williams, lawyer, nonconformist historian

• Greg Davies, comedian
• Paul Jones, footballer
• Neil Thomas, gymnast