Special education (known as special-needs education, aided education, exceptional education, alternative provision, exceptional student education, special ed., SDC, or SPED) is the practice of educating students in a way that accommodates their individual differences, disabilities, and special needs. This involves the individually planned and systematically monitored arrangement of teaching procedures, adapted equipment and materials, and accessible settings. These interventions are designed to help individuals with special needs achieve a higher level of personal self-sufficiency and success in school and in their community, which may not be available if the student were only given access to a typical classroom education.

Special education aims to provide accommodated education for disabled students such as learning disabilities, learning difficulties (such as dyslexia), communication disorders, emotional and behavioral disorders, physical disabilities (such as osteogenesis imperfecta, cerebral palsy, lissencephaly, Emanuel syndrome, and muscular dystrophy), developmental disabilities (such as autism spectrum disorder, Down syndrome, and intellectual disabilities) and other disabilities. Disabled students are likely to benefit from additional educational services such as different approaches to teaching, the use of technology, a specifically adapted teaching area, a resource room, or a separate classroom.

Some scholars of education may categorize gifted education under the umbrella of "special education," but this pedagogical approach is different from special education because of the students' capabilities. Intellectual giftedness is a difference in learning and can also benefit from specialized teaching techniques or different educational programs, but the term "special education" is generally used to specifically indicate instruction of disabled students.

Whereas special education is designed specifically for students with learning disabilities, remedial education can be designed for any students, with or without special needs; the defining trait is simply that they have reached a point of unpreparedness, regardless of why. For example, if a person's education was disrupted, for example, by internal displacement during civil disorder or a war.

In most developed countries, educators modify teaching methods and environments so that the maximum number of students are served in general education environments. Integration can reduce social stigmas and improve academic achievement for many students.

The opposite of special education is general education, also known as mainstream education. General education is the standard curriculum presented without special teaching methods or supports. Sometimes special education classrooms and general special education classrooms mix. This is called an inclusive classroom.