Aden Colony, also the Colony of Aden, located in the south of contemporary Yemen, was a crown colony of the United Kingdom from 1937 to 1963. It consisted of the port of Aden and its immediate surroundings.

Aden is a port city located in Yemen in the southern part of the Arabian peninsula, positioned near the eastern approach to the Red Sea. It is situated approximately 170 km east of the Bab-el-Mandeb strait and north of the Gulf of Aden. With its strategic location on the coastline, Aden serves as a gateway between the Red Sea and the Arabian Sea, making it a crucial maritime hub connecting Africa, Asia, and the Middle East. As of 2023, Aden City has a population of approximately 1,080,000 residents, making it one of the largest cities in Yemen.