Special group

Special group may refer to:

• Special Group (India), a secretive special forces unit of Indian intelligence.
• Special Groups (Iraq), insurgent groups operating within Iraq.
• Special Groups (Portugal), small military units, set up by the Portuguese Armed Forces in Angola and in Mozambique.
• NSC 5412/2 Special Group, a subcommittee of the United States National Security Council responsible for coordinating government covert operations.
• Special forces, specialist military units.

• Special group (algebraic group theory) is a linear algebraic group such that every principal G-bundle is locally trivial
• Special group (finite group theory) is a type of finite groups of prime power order
• Special Lie groups are Lie groups of matrices with determinant 1:
  • Special linear group
  • Special orthogonal group
  • Special unitary group
  • Special affine group