Southwold lighthouse is a lighthouse operated by Trinity House in the centre of Southwold in Suffolk, England. It stands on the North Sea coast, acting as a warning light for shipping passing along the east coast and as a guide for vessels navigating to Southwold harbour.
The lighthouse, which is a prominent local landmark, was commissioned in 1890, and was automated and electrified in 1938. It survived a fire in its original oil-fired lamp just six days after commissioning and today operates a 150-watt lamp. The main navigation lamp has a range of 24nmi.