The flock(2) system call, used for file locking.

Raven's Nest, also known as The Flock, a large stable in World Championship Wrestling headed by Raven.

A flock, a large number of people, or a crowd.

Flock (web browser), an open-source Web browser based on Mozilla Firefox and the company developing it.

The Flock (band), a progressive rock band fronted by violinist Jerry Goodman

The Flock (film), a forthcoming film starring Richard Gere

Flock (album), the third album by Irish band Bell X1.

Flock (sculpture), a sculpture by Michael Christian.

The Flock (novel), a novel by James Robert Smith

A flock, a group of animals, a herd, especially of sheep or goats.

Flock (birds), a group of birds, either in flight, or while feeding.