"The state of emergency declared on March 06, 2018 according to the instructions given by President Maithripala Sirisena has been lifted," a statement on the presidential website said.
Sirisena signed the notification following his state visit to Japan.
"Upon assessing the public safety situation, I instructed to revoke the State of Emergency from midnight yesterday," Sirisena wrote on Twitter on Sunday.
The previous state of emergency, which had been in place in the country for nearly three decades, was lifted in 2011 following the end of the civil war and the government's victory over Tamil Tiger rebels. Sri Lanka is a multireligious country, with Buddhists comprising about 70 percent of the population, Hindus and Muslims — 13 and 10 percent respectively.