Simeon Brooks Chapin (May 31, 1865 – Jan. 6, 1945) was a financier, philanthropist, and one of the early developers of Myrtle Beach, South Carolina.

In 1892, he began his own business as a banker and broker in Chicago and in the same year married Elizabeth Mattocks.

In 1901, he formed S. B. Chapin Company with offices in both Chicago and Wall Street.

Chapin retired in 1941, after which he formed several philanthropic foundations, including Chapin Foundation of Myrtle Beach, which by 2005 had contributed $15 million to churches, institutions, and hospitals in the city.

[1] The Chapins had four children, Marietta, Elizabeth, Simeon Jr., and Virginia.