The pardon for Kem Sokha is unlikely to greatly affect the political climate in the Southeast Asian nation, where activists continue to face restrictions on freedom of speech.

Cambodian opposition leader Kem Sokha has received a royal pardon from his 27-year treason sentence.

PHNOM PENH, May 25 — Cambodia’s king has pardoned former opposition leader Kem Sokha for a treason conviction, just weeks after he lost an appeal to overturn that verdict,...