Regent Theatre (formerly known as the Gaumont) is a theatre and concert venue located at St Helen's Street in Ipswich, Suffolk, England. The auditorium was recently refurbished and now holds 1,551 people, having lost around 150 seats. It is East Anglia's largest theatre. It has also been known as the Gaumont and Odeon. It was designated as a Grade II Listed Building in 2000.