Contention

Contention or contentious  may refer to:


 * Contention (telecommunications), a media access method to share a broadcast medium
 * Contention, Oregon, U.S., later known as Twickenham
 * Contention City, Arizona, U.S., a ghost town
 * Bus contention, an undesirable state in computer design
 * FV4401 Contentious, a prototype British tank destroyer
 * Resource contention, in computer science, a conflict over access to a shared resource