Butterworth is the city centre of Seberang Perai in the Malaysian state of Penang. It lies about 3 km (1.9 mi) east of George Town, the capital city of Penang, across the Penang Strait. As of 2020, Butterworth had a total population of 80,378 residents.

Seberang Perai is a city in the Malaysian state of Penang. Located on the Malay Peninsula and separated from Penang Island by the Penang Strait, it shares borders with Kedah to the north and east, and Perak to the south. The city spans an area of 748 km2 (289 sq mi) and had a population of 946,092 as of 2020, making it the third largest city in Malaysia.