While Irish and British relations have clearly improved over the past decade, confusing an Irishman for a Brit probably isn't the best way to win business.
The tweet quickly sparked anger among Irish followers on Twitter.
Fortunately for Starbucks, it turns out the tweet was a mistake and was actually meant for their audience in the UK.
Starbucks was last in the spotlight when it introduced the use of a red dye made from crushed insects into its strawberry flavored drinks.
The coffee chain later reversed the decision after vegans and vegetarians protested the controversial ingredient.