Cannon Rock is an 1895 oil painting by the American artist Winslow Homer.

In late 19th-century, Homer's painted several seascapes, such as The Gulf Stream (1899), Moonlight – Wood's Island Light (1886), and Northeaster (1895).

It has been said that they "are among the strongest expressions in all art of the power and dangerous beauty of the sea".

[2] The New York Times's Geraldine Fabricant said the painting is not a literal representation and "bears little resemblance to the actual place".

In his Winslow Homer in the 1890s: Prout's Neck Observed, Homer expert Philip Beam noted the artist's rearranging of the horizontal ledges of rock into a triangular shape so that "it rivets attention on his main motive".