Locator

Locator may refer to:

One who locates, or is entitled to locate, a land or mining claim
Lokator (in Latin locator), a medieval servant in charge of organizing colonization and settlement
Locator map
Locator software, a type of e-commerce software
Locator (computing), a tool used in software development
Maidenhead Locator System, a method used by amateur radio operators to define locations on the Earth
Record locators used by airlines and travel agencies
Uniform Resource Locator (URL)
A device used in acoustic location
The Locator, a series of novels by Richard Greener which were adapted into the television series The Finder
(Laboratory) A person in charge of knowing where all the staff of a laboratory are located, using signals from a badge that the staff wear.

Aviation

Non-directional beacon, a radio navigation aid for use by pilots of aircraft
Locator outer marker, a radio navigation aid for use with an aircraft instrument landing system