Higashi-ku, Sakai

 is a ward of the city of Sakai in Osaka Prefecture, Japan. The ward has an area of 10.48 km² and a population of 85,263. The population density is 8,136 per square kilometer. The name means "East Ward."
The wards of Sakai were established when Sakai became a city designated by government ordinance on April 1, 2006.