Countries A-Z with the Most Islands

Main source: https://en.wikipedia.org/wiki/List_of_countries_by_number_of_islands (does not include all countries, so for many countries Google was used instead. Other sources include, e.g., https://www.croatiaweek.com/which-countries-have-the-most-islands-croatia-makes-the-list/)

Note that the definition of "island" varies in different sources.