**The point at (0°, 0°) is not generally given a name**

All geographers, cartographers and surveyors ought to know the following, but I reference some sources anyway:

According to [Matt Rosenberg][1]

> The point at which the equator (0° latitude) and the prime meridian (0° longitude) intersect has no real significance but it is in the Gulf of Guinea in the Atlantic Ocean, about 380 miles (611 kilometers) south of Ghana and 670 miles (1078 km) west of Gabon.

Also, according to [wiki/Geographic_coordinate_system#Geographic_latitude_and_longitude][2]

> The 0° parallel of latitude is designated the equator ... 

> The meridian of the British Royal Observatory in Greenwich, a little east of London, England, is the international Prime Meridian ... [is the 0° meridian]

> ... 

> The grid thus formed by latitude and longitude is known as the "graticule". The zero/zero point of this system is located in the Gulf of Guinea about 625 km (390 mi) south of Tema, Ghana.

And at [Fact Monster's Geography Glossary][3]:

> Zero degrees (0°) latitude is the equator ... Zero degrees longitude (0°) is called the prime meridian.

While "the origin" might well work – after all, that *is* what we call (0, 0) on a *plane* coordinate system – the point at (0°, 0°), on a *spheroidal* system, is not generally given a name. Certainly, none of the above give it a name, and until now, I'd never heard of Null Island.


  [1]: http://geography.about.com/library/faq/blqzzerozero.htm
  [2]: http://en.wikipedia.org/wiki/Geographic_coordinate_system#Geographic_latitude_and_longitude
  [3]: http://www.factmonster.com/ipka/A0908193.html