David Josiah Brewer (June 20, 1837 – March 28, 1910) was an American jurist who served as an associate justice of the Supreme Court of the United States from 1890 to 1910. An appointee of President Benjamin Harrison, he supported states' rights, opposed broad interpretations of Congress's power to regulate interstate commerce, and voted to strike down economic regulations that he felt infringed on the freedom of contract. He and Justice Rufus W. Peckham were the "intellectual leaders" of the Fuller Court, according to the legal academic Owen M. Fiss. Brewer has been viewed negatively by most scholars, though a few have argued that his reputation as a staunch conservative deserves to be reconsidered.