She’s been your best friend from birth. Celebrate your sister’s special day with a birthday card she’ll love. Whether she’s a sister in spirit or a sister in law, our birthday cards can be personalized to be as unique as she is.

Short on birthday card ideas for your sister? For the sarcastic or whacky sister, choose funny cards with whimsical cartoon images. For the sister who’s sweeter than birthday cake, opt for cards in soft pastel tones with sentimental words that will speak to her heart. Our printable birthday cards can be sent to your sister after you’ve personalized them. You can also send them with just a simple click.

Send Happy Birthday greetings and cards from Blue Mountain for the sister who makes you smile.