Caleigh Harrison was a 2-year-old who vanished from a Long Beach area in Rockport, Massachusetts, on April 19, 2012. She was at the beach with her mother and a 4-year-old sibling when a ball rolled over a seawall; the mother briefly went to retrieve it and returned to find Caleigh gone. An extensive search that day turned up no sign of the child.

Investigators concluded that strong currents that day made it likely Caleigh fell into the ocean and was swept away. A report of a strange man near the beach prompted family concern about abduction, but that line of inquiry was later dismissed and authorities treated drowning as the most likely explanation. In November 2012 a pair of pink capri pants similar to what she had been wearing washed ashore, but no further evidence has confirmed her fate and her body has not been recovered.

Anyone who was at Long Beach on April 19, 2012, or who has information about that day is asked to come forward.