Funny Sister Birthday Cards

Make your sister laugh out loud with one of our funny sister birthday cards. Whether you're looking to make her giggle or snort with laughter: just choose the card, and with same-day dispatch and fast delivery, don’t worry about the rest.

While some people hope their card will make their sister smile, others hope it'll make her laugh so hard her drink will shoot out of her nose. No one can make you laugh like your sister - from inside jokes to when you've burst out laughing just by making eye contact. We've created our special collection of funny sister birthday cards to help you make this birthday one you'll laugh about for years to come.