The Temple of Claudius or Temple of the Deified Claudius was a large octastyle temple built in Camulodunum, the modern Colchester in Essex. The main building was constructed between 49 and 60 AD, although additions were built throughout the Roman-era. Today, it forms the base of the Norman Colchester Castle. It is one of at least eight Roman-era pagan temples in Colchester, and was the largest temple of its kind in Roman Britain; its current remains potentially represent the earliest existing Roman stonework in the country.

Camulodunum, the Ancient Roman name for what is now Colchester in Essex, was an important castrum and city in Roman Britain, and the first capital of the province. A temporary "strapline" in the 1960s identifying it as the "oldest recorded town in Britain" has become popular with residents and is still used on heritage roadsigns on trunk road approaches. Originally the site of the Brythonic-Celtic oppidum of Camulodunon, capital of the Trinovantes and later the Catuvellauni tribes, it was first mentioned by name on coinage minted by the chieftain Tasciovanus some time between 20 and 10 BC. The Roman town began life as a Roman legionary base constructed in the AD 40s on the site of the Brythonic-Celtic fortress following its conquest by the Emperor Claudius. After the early town was destroyed during the Iceni rebellion in AD 60/61, it was rebuilt, reaching its zenith in the 2nd and 3rd centuries. During this time it was known by its official name Colonia Claudia Victricensis, often shortened to Colonia Victricensis, and as Camulodunum, a Latinised version of its original Brythonic name. The town was home to a large classical temple, two theatres, several Romano-British temples, Britain's only known chariot circus, Britain's first town walls, several large cemeteries and over 50 known mosaics and tessellated pavements. It may have reached a population of 30,000 at its height.