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Birthday eCards for Sister
Send a loving or a funny ecard to a sister on her birthday and put a smile on her lips!
Looking for a fun birthday card to send to a sister on her big day? We have collected the best cards that will make her go "Awwww". Select your favourite birthday ecard and help her have the best day ever. We'll send your greetings to her instantly, wherever she is!
Filters
Birthday eCards collections:
Browse ecards for:
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![Birthday flowers]()
Birthday flowers
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![Joy, love, and happiness]()
Joy, love, and happiness
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![Flowers for you]()
Flowers for you
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![Bear hug]()
Bear hug
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![A little tune]()
A little tune
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![Happy Purr-day]()
Happy Purr-day
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![Singing puppies]()
Singing puppies
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![Singing birds]()
Singing birds
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![Popping balloons]()
Popping balloons
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![Tap dancing owls]()
Tap dancing owls
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![Kamala's birthday greeting]()
Kamala's birthday greeting
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![Pugs and kisses]()
Pugs and kisses
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![Blow out candles]()
Blow out candles
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![Birthday Martini]()
Birthday Martini
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![Treat yourself]()
Treat yourself
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![Still fabulous]()
Still fabulous
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![Today's special]()
Today's special
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![Kick back]()
Kick back
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![Joe and Jill]()
Joe and Jill
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![You rock!]()
You rock!
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![Caterwauling]()
Caterwauling
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![Like a rose]()
Like a rose
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![Funny beaver]()
Funny beaver
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![Sweet-ish pug]()
Sweet-ish pug
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![Cheers!]()
Cheers!
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![Yummy birthday]()
Yummy birthday
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![Smart cookie]()
Smart cookie
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![Leaping frog]()
Leaping frog
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![Berry happy birthday]()
Berry happy birthday
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![Summer day]()
Summer day
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![Aries]()
Aries
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![Obama sings]()
Obama sings
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![Cancer]()
Cancer
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![Leo]()
Leo
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![Virgo]()
Virgo
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![Make a new ecard]()
Make a new ecard
Try 123cards free for 3 days
- Access to all Premium ecards
- Cancel anytime during trial
- Your recipients will love the cards!
Simply enter your email to get started:
- Access to all Premium ecards
- Cancel anytime during trial
- Your recipients will love the cards!
Related ecard categories
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See moreCongratulations
Send a free congratulations ecard to celebrate a milestone and wish congratulations!
![Cone-grats!]()
![Cat with balloons]()
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See moreThinking of You
Are you thinking about someone? Send a beautiful online ecard to let them know they are in your thoughts!​
![Bon voyage]()
![Adventure awaits]()
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See moreFriendship
Send friendship ecards to your friends to tell them how much they mean to you.
![Missing the fun times]()
![Friends forever]()
