Which U.S. President is known for serving non-consecutive terms?

Grover Cleveland is the only U.S. President known for serving two non-consecutive terms. He was first elected as the 22nd President in 1884 and served until 1889. After losing his reelection bid to Benjamin Harrison, Cleveland returned to the presidency as the 24th President after winning the election again in 1892. This unique situation makes him both the 22nd and 24th President of the United States, thus establishing his distinction in American history as the only leader to have held the presidency in non-consecutive terms. The other Presidents listed did not serve non-consecutive terms, making Cleveland the correct answer.