A Saudi man was decapitated by sword on Sunday in the western city of Taif for murdering a compatriot, the interior ministry said.
Yussef al-Nafii had been convicted of shooting Salman al-Rabii dead after a dispute, the ministry said in a statement carried by the official SPA news agency.
The beheading raises to 27 the number of executions announced in Saudi Arabia so far this year, according to an AFP tally.
Last year, there were 78 executions in Saudi Arabia and the UN High Commissioner for Human Rights denounced a "sharp increase in the use of capital punishment".
Rape, murder, apostasy, armed robbery and drug trafficking are all punishable by death under the kingdom's strict version of Islamic sharia law.