Conklin Brush (March 8, 1794 – July 4, 1870) was an American businessman and Mayor of Brooklyn.
His nephew was Professor George Jarvis Brush, the director of Sheffield Scientific School at Yale University.
In 1834, he was chairman of a committee raised to fight for more ferry rights and led the movement to expand Fulton Street from a cow path to a major avenue.
In 1840, he helped incorporate the Atlantic docks, serving as company director, and in 1848 he erected a grain elevator and several stores there.
They had 11 children, including Delia, Jane, Anna, Goold, Henry, Julia M., and Francis Vinton.