Wassanaye Sanda (Sinhala: වස්සානයේ සඳ, lit. 'Moon of the Autumn') is a 2018 Sri Lankan Sinhala romantic drama film directed by Udayakantha Warnasuriya and co-produced by the director along with Mahesh K. Bandara and H. D. Premasiri. It stars Oshadi Himasha, Piumi Hansamali and Angelo Sanjeev Barnes with Anuj Ranasinghe in lead roles along with Anula Karunathilaka and Ravindra Randeniya. The music was composed by veteran musician Rohana Weerasinghe.

A number of the scenes from the film were shot in Australia. The film had its international premiere on 8 October 2017 in Sydney, Australia, with a subsequent screening in Melbourne on 14 October.

The film was not released in Sri Lanka until 25 May 2018, with a simultaneous book launch of Wassanaye Sanda taking place when the film debuted at the Regal Cinema in Colombo. It is the 1305th (LK) Sri Lanka film in the Sinhala cinema.