In mathematics, a theorem that covers a variety of cases is sometimes called a master theorem.

Some theorems called master theorems in their fields include:

• Master theorem (analysis of algorithms), analyzing the asymptotic behavior of divide-and-conquer algorithms
• Ramanujan's master theorem, providing an analytic expression for the Mellin transform of an analytic function
• MacMahon master theorem (MMT), in enumerative combinatorics and linear algebra
• Glasser's master theorem in integral calculus