Major General V. Udaya B. Nanayakkara, USP was a Sri Lankan military engineer.

During his military service he had served as Commander Area Headquarters, Kandy; Director, Directorate of Psychological Operations; Centre Commandant Regimental Headquarters, Sri Lanka Engineers; Brigade Commander, 552 "Muhamale" Brigade; Brigade Commander, 214 "Paryanakulam " Brigade.

General Nanayakkara has received the Uttama Seva Padakkama (USP), the Sri Lanka Armed Services Long Service Medal, the Riviresa Campaign Services Medal, the Purna Bhumi Padakkama, the North and East Operations Medal and the 50th Independence Anniversary Commemoration Medal.

Following his retirement, he served as the Director General of Urban Housing Development Authority of Sri Lanka and was appointed Chairman of the Urban Development Authority.

He had served as the Honorary Consul of the Republic of Serbia in Sri Lanka, as of January 2021[update].