Moon Rappin' is an album by American organist Brother Jack McDuff recorded in 1969 and released on the Blue Note label.

[2] The Allmusic review by Stephen Thomas Erlewine awarded the album 3 stars and stated "Moon Rappin' is one of Brother Jack McDuff's most ambitious efforts, a loose concept album that finds the organist exploring funky and spacy soundscapes...

It's not strictly funky -- it doesn't have the grit of early Brother Jack records, nor does it swing hard -- but it proves that McDuff was as adept in adventurous territory as he was with the groove".

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