Johannes Hermanus Barend Koekkoek (6 July 1840, Amsterdam - 24 January 1912, Hilversum) was a Dutch marine artist.
His brothers, Willem, Hermanus, and Hendrik Barend [nl] also became painters.
As a result, he came to favor relaxed scenes from the lives of fishermen and their families, rather than dramatic ocean views with ships.
Following family tradition, he tutored his son, Gerardus Johannes [de], who also painted landscapes and maritime scenes.
On their recommendation, he gave lessons to the landscape painter, Lion Schulman [de].