Excavations at La Sagesse Convent, Romsey, uncovered a Final Upper Palaeolithic flint assemblage representing an open-air, short-term camp. The site is in the Test Valley on a low gravel terrace at the edge of the river system. Two scatters were found. Although not in situ, little lateral movement is indicated for at least one of these scatters from which several core reduction sequences could be determined through a programme of refitting. The other scatter appears to have suffered more post-depositional disturbance. One scatter appears to have functioned as a knapping station, while the other may have been an area of tool production. Chronological, technological, and cultural affinities are discussed and it is concluded that the flint assemblage belongs with the Final Upper Palaeolithic Hengistbury-type industries, probably dating to the second part of the Windermere interstadial (c. 12,500–11,000 cal BC; 12,000–11,000 BP).