Wikipedia:Selfie

Per the policy on user pages, Wikipedians who are active contributors are generally given leniency over what they can include on their user pages. While Wikipedia is not a social network, nor a file storage site, active contributors are allowed to share information about themselves. This includes selfies.

Per COM:INUSE, "The uploading of small numbers of images (e.g. of yourself) for use on a personal user page of Commons or another project is allowed as long as that user is or was an active participant on that project."

However, because Wikipedia is not a social network, personal photos of non-contributors are not allowed and will be deleted. COM:F10 allows speedy deletion of "low-to-medium quality selfies and other personal images of or by users who have no constructive global contributions".

Underage editors are advised to not share pictures of themselves per Guidance for younger editors. Photos of underaged contributors may be deleted and/or oversighted.