Happy Mother's Day Ecards for Sister

Let your sister know how great she is with a Happy Mother’s Day card from her favorite sibling.

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Do I Say Happy Mother’s Day to My Sister?

Saying “Happy Mother’s Day, Sis” and letting her know she’s an awesome mom is a great way to show you care! A sweet Mother’s Day Sister ecard with a personal note is the perfect place to start. Whether you decide to get her a gift or not, like a cool egift card, it’s the thought that counts. Check out more digital gifts and our Inspiration page for more ideas. Here’s to celebrating your amazing sister this Mother’s Day!