Project Kotlin was born in Saint Petersburg, Russia, where one of the main JetBrains' development offices is located. Kotlin is the name of an island situated nearby Saint Petersburg, in the Gulf of Finland, with a beautiful town of Kronstadt build upon the island.
Disclaimer 1: We are pretty sure that no coffee or other exotic cultures are grown in Kotlin in any significant amounts.
Disclaimer 2: Kotlin Class Destroyers were named after the same island. Our language is not intended for any class destruction.