Which U.S. President appointed the most Justices to the U.S. Supreme Court?

President George Washington appointed the most justices to the United States Supreme Court. Washington made 10 appointments to the court, while Franklin Roosevelt made the second highest number of appointments, nine. Only three presidents besides Andrew Johnson did not make appointments: William Henry Harrison (who died in 1841, a month after his inauguration), Zachary Taylor (who passed away in 1850, 16 months after taking office) and Jimmy Carter.

As the first President, Washington was responsible for appointing the entire Supreme Court. He appointed a record ten justices, including two Chief Justices who were confirmed from outside the Court and one former Justice named as Chief Justice by a recess appointment, but not ultimately confirmed to the position. Additionally, Washington nominated Robert H. Harrison, who declined to serve, and nominated William Cushing for elevation to Chief Justice, who likewise declined.