A distillery on the Caribbean island of St. Vincent produces a rum that is 84.5 % alcohol by volume (169-proof). It's so strong that travelers are banned from taking a bottle back home with them
https://www.uncommoncaribbean.com/st-vincent-the-grenadines/sunset-very-strong-rum/
the normal is 75%
https://www.uncommoncaribbean.com/st-vincent-the-grenadines/sunset-very-strong-rum/
the normal is 75%