The Nauvoo Illinois Temple is the 113th dedicated temple of The Church of Jesus Christ of Latter-day Saints. It is the third such temple that has been built in Illinois (the original Nauvoo Temple and Chicago Illinois Temple being the others).

Located in the town of Nauvoo, the temple's construction was announced on April 4, 1999, by LDS President Gordon B. Hinckley. Groundbreaking was conducted on October 24, 1999 and the cornerstones were laid November 5, 2000. The structure itself was built in the Greek Revival architectural style using limestone block quarried in Russellville, Alabama. It is built in the same location as the original structure that was dedicated in 1846.

The building measures 130 feet (40 m) long, 90 feet (27 m) wide, and 162 feet (49 m) tall to the top of the statue of Angel Moroni. It has an area of 54,000 square feet (5,000 m2). It is the only LDS temple that has a bell tower.

Church leaders and architects carefully worked to replicate the original exterior design of the 19th-century temple, which was successively damaged by an arson fire in 1848 and by a tornado on May 27, 1850. It was consequently condemned and demolished by the Nauvoo City Council. Construction materials and furniture were derived from the original design as well. Its interior floor plan is noticeably different from that of the old Nauvoo Temple, however. The completion and official dedication was celebrated on June 27, 2002, on the anniversary of the death of Joseph Smith, the Church's founder.

Up to 1.5 million visitors a year have visited Nauvoo since the temple opened in 2002