Howarth is a surname (the article includes a list of people with the name).
Howarth may also refer to:
Howarth Glacier, in Antarctica Howarth of London, musical instrument manufacturers Howarth Bouis (born 1950), an American economist
See also
Haworth (surname) Hayworth Howard Howorth Howarthia, a genus of butterfly Howarth–Dorodnitsyn transformation in fluid dynamics