Wikipedia:Naming conventions (geographic names)

These are advice, intended to guide, not force, consensus; but they are the consensus of actual experience in move discussions.

Names not in Roman script should be transliterated (in italics). If there are multiple frequently used transliterations (again, used by at least 10% of the English sources), include them.

When a widely accepted English name, in a modern context, exists for a place, we should use it. This will often be identical in form to the local name (as with Paris or Berlin), but in many cases it will differ (Germany rather than Deutschland, Rome rather than Roma, Hanover rather than Hannover, Meissen rather than Meißen). If a native name is more often used in English sources than a corresponding traditional English name, then use the native name. An example is Livorno, which is now known more widely under its native name than under the traditional English name "Leghorn".

If no name can be shown to be widely accepted in English, use the local name. If more than one local name exists, follow the procedure explained below under Multiple local names.

If the place does not exist any more, or the article deals only with a place in a period when it held a different name, the widely accepted historical English name should be used. If there is no such name in English, use the historical name that is now used locally – for more, see Use modern names, below.

Other applicable names can be used in the titles of redirects. They may also appear in the lead paragraph or in a special section of the article, in accordance with the advice given in the lead section guideline. For use of names in infoboxes, see the infobox guideline.

A name can be considered as widely accepted if a neutral and reliable source states: "X is the name most often used for this entity". Without such an assertion, the following sources may be helpful in establishing a widely accepted name. It is important that the sources be from the appropriate period, namely, the modern era for current names, or the relevant historical period for historical names. For modern sources, it is important to identify any recent watershed moments in the location's history (such as the fall of the Soviet Union for Eastern Europe, or other revolutions, invasions and nationality changes), and limit sources to those published after that watershed.

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