He was 82 and was the last surviving founding member of the legendary British band.
His longtime bandmate John Lodge announced the news on social media via Pinders family.
Ray Thomas died in 2002 and Clint Warwick in 2004.
Mike Pinder onstage with the Moody Blues in 1972Gijsbert Hanekroot/Redferns
Lodge and lead singer Justin Heyward joined in 1966.
Pinder co-formed the group in Birmingham just as the British Invasion was hitting America.
1 in the UK and went top 10 in the States.
The Moody Blues circa 1971, with Mike Pinder at far right (Everett Collection)
The groups Legend of a Mind was about the acid king Timothy Leary.
The song spent two weeks at No.
2 held out of the pole position by Johnny Nashs I Can See Clearly Now.
The following yearsSeventh Sojournwas the bands first U.S. chart-topper, ruling the Billboard 200 for five weeks.
Pinder also provided narration on that albums track The Dream.
