Change Pinterest Username: Your Pinterest username is used to create your profile's web address. For example, Pinterest has the username 'Pinterest' and can be found at pinterest.com/Pinterest. Your username can be 3-30 characters, and can't have spaces, symbols, or punctuation. So, if you intend to change your Pinterest username to something new, follow the steps below; Click at the top of Pinterest to open your menu Click Edit settings Click or scroll down to the "Profile" section Edit your username in "Username" Click Save settings If you see the message "Oops! Username already taken," try out another username or try adding numbers until it is accepted.