50 Year Anniversary World Tour is a Neil Diamond tour that marked the 50th Anniversary of Diamond's first hit single, "Solitary Man," released in 1966.

[1] It began in Fresno, California on April 7, 2017, and concluded at The O2 Arena in London on October 19, 2017.

The tour began just after the March release of a 50-song, three-disc career-spanning box set titled Neil Diamond 50 – 50th Anniversary Collection.

[2][3] The Oceania tour was announced on November 10, 2017 [4] and cancelled on January 22, 2018, after Diamond announced he had been diagnosed with Parkinson's disease.

[5]