The unknown man is being referred to as John Doe 27. He is wanted by the FBI after images surfaced online of the man being photographed while engaging in sex acts with a child.
The images were first discovered by the National Center for Missing and Exploited Children (NCMEC) in April of this year.
The FBI says the photos have since been posted in numerous child pornography forums.
NCMEC enhanced photos depicting John Doe 27 and hope a number of clues connected to the case may help determine his identity.
His current location is also unknown at this time.
Anyone with information is asked to contact the FBI's toll-free tip line at 1-800-CALL-FBI. Tips can also be submitted online.