Calvin Pollard (June 14, 1797 - 1850) was a New York City architect.
He is known for his early design of the Brooklyn Borough Hall, the Petersburg courthouse, and numerous other schools and houses in the New York City area.
[3] In that same year, he won the contest to design the City Hall for Brooklyn.
Nine years later, Gamaliel Kings revised Pollard’s plans and construction resumed, finally completing in 1848.
[4] In 1836, Pollard built the Brandreth Pill Factory in Ossining, listed on the National Register of Historic Places in 1980.