Tiptree Marina is a marina located on the River Cam in Cambridgeshire, England. It sits along a stretch of the river between Reach Lode and Swaffham Lode, placing it in the fenland section of the Cam south of Ely.

The surrounding area is low-lying agricultural land typical of the Cambridgeshire fens.

The River Cam at this point forms part of a navigable waterway network that connects via the River Great Ouse to England's broader canal system, making Tiptree Marina a useful access point for boaters exploring the region's inland waterways.