Principal

Principal may refer to:

Title or rank

Principal (academia), the chief executive of a university
- Principal (education), the head of a school
Principal (civil service) or principal officer, the senior management level in the UK Civil Service
Principal dancer, the top rank in ballet
Principal (music), the top rank in an orchestra

Principal (commercial law), the person who authorizes an agent
- Principal (architecture), licensed professional(s) with ownership of the firm
Principal (criminal law), the primary actor in a criminal offense
Principal (Catholic Church), an honorific used in the See of Lisbon

The Principal (TV series), a 2015 Australian drama series
The Principal, a 1987 action film
Principal (music), the lead musician in a section of an orchestra
Principal photography, the first phase of movie production
"Principal", a song by Cardi B featuring Janet Jackson from the album Am I the Drama?
"The Principal", a song by Melanie Martinez from the album K-12
The Principal (Vice Principals), an episode of the American TV series Vice Principals

Principal (finance) or principal sum, the original amount of a debt or investment on which interest is calculated
- Principal (bond), the face value of a bond
Principal Financial Group, a life insurance company

Principal (computer security), an entity that can be identified and verified
Principal or diapason, one of the flue pipes on a pipe organ
- Principal or diapason, a corresponding organ stop on a pipe organ
Victoria Principal (born 1950), American actress