domain name dispute
A domain name dispute is a conflict that arises when more than one individual or group believes it has the right to register a specific domain name. Most commonly a domain name dispute would occur when a domain name similar to a registered trademark is registered by an individual or organization who is not the trademark owner. All domain name registrars must follow the ICANN's Uniform Domain-Name Dispute-Resolution Policy (UDRP).
See "Registering a Domain Name" and "Understanding Internet Governance" in the Did You Know...? section of Webopedia.
See also "Countries and Their Domain Extensions" in Webopedia's Quick Reference Section.