chairperson

First recorded in 1970–75; chair(man) + -person

Chairperson has, since the 1960s, come to be used widely as an alternative to either chairman or chairwoman. This change was motivated largely by a desire to avoid chairman, which was felt to be inappropriate and even sexually discriminatory when applied to a woman. Chairperson is standard in all varieties of speech and writing.
Despite such widespread acceptance, some organizations and publications do not use chairperson at all, usually on the grounds that it is awkward and that chairman is a well-established generic term. Many style guides advocate use of the term chair to designate the presiding officer, thus avoiding charges of both sexism and awkwardness: Jim will be chair of the entertainment committee this year, and Jane will be chair next year. See also -man, -person, -woman.