National Chocolate Cupcake Day falls on Sunday, October 18, 2026. It celebrates the soft, rich, single-serve cake with a swirl of frosting on top. Below are 105 ready-to-use messages, wishes, quotes, captions and slogans for friends, family, coworkers, sweethearts and bakery fans. Just tap and copy. National Chocolate Cupcake Day Messages, Wishes & Greetings Short, ...