Instagram captions

Best friend captions for the person who knows everything

More than 60 best friend captions for photos with the one person who has seen every version of you. They are sorted by the kind of post: funny, sentimental, birthday, long distance, matching outfits and photo dumps.

Updated 6 October 2026 · 61 captions

Tap a caption to copy it, then paste it under your post.

Funny and teasing · 13

Sentimental · 11

Birthday posts for a best friend · 9

Long distance and far-away friends · 9

Matching outfits and photo dumps · 9

Short ones · 10

Tips before you post

  1. Ask your friend before you post. A photo that you love may show a day they would rather not share, and a quick check keeps the friendship better than the post.

  2. Tag them in the photo and in the caption only if they use their real account publicly. Some people prefer not to be tagged, and a message with the photo works just as well.

  3. Pick an in-joke only the two of you understand and make it the caption. Followers who are not in on it still get the warmth, and your friend will smile.

  4. Use old photos for birthdays. A side-by-side of the first photo you took together and a new one tells the story with no words needed.

  5. If your friend lives far away, post the photo from the visit rather than the goodbye. A caption about the hug at arrivals is the one people tend to enjoy.

Turn comments into DMs

Ask people to comment BESTIE

End your caption with a line like this:

“Comment BESTIE and I'll send it to you in a DM.”

What they get

my best friend gift guide: twenty ideas for every budget, plus the card message I wrote for mine.

DMFast answers each comment and sends the DM for you. The first message asks them to reply, then the link follows, because Instagram allows no links in that first message.

Set it up freeDM templates

Questions people ask

What should I write under a photo of my best friend?

Use something only you two would know: a nickname, a shared habit, the place the photo was taken. A specific detail feels more personal than a general line about friendship.

Should I tag my best friend in the caption?

You can, but ask first if you are not sure how they feel. Some people like a tag, others prefer a private message with the photo. Tagging in the photo itself and in the caption are separate choices.

What is a good short caption for a best friend photo?

Something like a few words naming the bond works well: a nickname, a word that covers your friendship or a joke about the day. Short captions let the photo lead.

How do I write a birthday caption for my best friend?

Mention a real thing you share, like a place you go or a habit they have, and add a line of warmth at the end. A funny line followed by a sincere one is easy to do well.

Related captions

More captions

Answer every comment your captions bring in

When someone comments the word you chose, DMFast replies under the comment and sends them your link in a DM, day and night. Free plan, no card.

Start free