'''Carl Allen''' may refer to:
*Carl Allen (cornerback) (1955–2021), American football player *Carl Allen (tailback) (1920–2008), American football player *Carl Allen (drummer) (born 1961), jazz drummer *Carl Ferdinand Allen (1811–1871), Danish historian *Carl Meredith Allen (1925–1994), American merchant marine; associated with the Philadelphia Experiment *Karl Allen (1931–2015), American neo-Nazi and bookstore owner
{{hndis|Allen, Carl}}