Tealham and Tadham Moors (grid reference ST420450) is a 917.6 hectare (2267.3 acre) biological Site of Special Scientific Interest south of Wedmore in Somerset, notified in 1985.

Land south of this site is included in Catcott, Edington and Chilton Moors SSSI.

The water table is high throughout the greater part of the year with winter flooding occurring annually, by over-topping of the River Brue.

113 aquatic and bankside vascular plant species have been recorded from the field ditches, rhynes and deep arterial watercourses.

A diverse invertebrate fauna is associated in particular with ditches that have a good submerged plant community.