There are tens of thousands of cities worldwide, and I can name many of them across various countries and continents. For example, a few cities starting with A include: A Coruña, Aachen, Aarhus, Abbeville, Aberdeen (UK and US), Abidjan, Abu Dhabi, Accra, Addis Ababa, Adelaide, Ahmedabad, Alexandria (Egypt and US), Algiers, Alicante, Almaty, and Alexandria. Similarly, there are thousands more starting with other letters, covering major capitals, large metropolitan areas, and smaller cities worldwide.

If a specific number or list of cities from a particular region or category is needed, that can be provided or counted specifically.