Mechanics' institutes, also known as mechanics' institutions, sometimes simply known as institutes, and also called schools of arts, were educational establishments originally formed to provide adult education, particularly in technical subjects, to working men in Victorian-era Britain and its colonies. They were often funded by local industrialists on the grounds that they would ultimately benefit from having more knowledgeable and skilled employees. The mechanics' institutes often included libraries for the adult working class, and were said to provide them with an alternative pastime to gambling and drinking in pubs.

Adult education, distinct from child education, is a practice in which adults engage in systematic and sustained self-educating activities in order to gain new forms of knowledge, skills, attitudes, or values. It can mean any form of learning adults engage in beyond traditional schooling, encompassing basic literacy to personal fulfillment as a lifelong learner, and to ensure the fulfillment of an individual.