Apollo Hall Democracy was a Democratic New York City political group opposed to the corruption of Tammany Hall.
Apollo Hall Democracy was a Democratic reform movement founded in the early 1870s by New York State Senator James O'Brien as a response to the corruption of Boss Tweed controlled Tammany Hall. It initially attracted many leading Democrats, but was unable to supplant Tammany Hall, which became reinvigorated under the leadership of John Kelly after the fall of Boss Tweed. Since Apollo Hall Democracy nominated its own set of candidates, the Democratic vote was split, allowing the Republicans to win many of the elections. By the mid-1870s, many frustrated members of Apollo Hall Democracy such as its former chairman William H. Wickham and William Collins Whitney joined Tammany Hall, causing Apollo Hall Democracy to fall into irrelevance.