What to write in a birthday card for your cousin
A cousin is the childhood co-conspirator — a birthday card can lean on all that shared history.
Happy birthday, cousin! From garden campouts to group chats — glad it's been you the whole way.
Birthday messages for your cousin
Wishing my favourite cousin the best birthday. Family by chance, friends by choice.
Happy birthday! No one else shares the childhood evidence we do. Have a great one.
To my cousin and lifelong teammate: have the best day. We're overdue a proper catch-up.
Happy birthday, cuz! Grateful for every holiday we spent scheming together. More of that this year.
Have a brilliant birthday — the family reunion's honestly just an excuse to see you.
Want to add a gift?
Going in on it together? Attach an experience gift to a group card and everyone chips in their share as they sign — €100 split eight ways is about €13 each. They pick the experience; the price stays private.
Make it your own
Add a name and a detail or two — the AI writes three you can use in seconds, free.
Questions
What do you write in a birthday card for your cousin?
A cousin is the childhood co-conspirator — a birthday card can lean on all that shared history. The strongest messages name one specific, true thing about them and say plainly how you feel — keep it short and it lands harder.
How long should a birthday message be?
One to three sentences is plenty. A short, specific line beats a long, generic paragraph — people remember the detail, not the word count.
Say it to Cousin in their language
The phrases natives use, and full messages by a native speaker — sent as a card in that language.
Found the words?
Put them on a card and send it free in a minute — no account, no watermark.