Southeastern is a train operating company in the United Kingdom. It began operations in south-east England on 1 April 2006, replacing the former publicly-owned operator South Eastern Trains and serves Kent, parts of East Sussex, and operate south-east London commuter routes. The London termini of its services are Charing Cross, Blackfriars, Cannon Street, and Victoria.

of a region of the United States generally including Alabama; Georgia; Florida; Tennessee; South Carolina; North Carolina

Of or pertaining to the southeast; southeasterly.

situated in or oriented toward the southeast