Missodia Sionia ("Sionian Chant of the Mass") is a collection of sacred music by Michael Praetorius, published in Wolfenbüttel in 1611.

It holds music for church services on Latin texts, set for two to eight parts, including a complete mass for eight voices.

[1][3] The content is described on the cover: "Missodia Sionia / Continens / Cantiones sacras, ad Officium / quod vocant Summum, ante meridianum)" (Zionic chants for the mass / containing / sacred songs, for the service / called the Highest / before noon), specifying Kyrie, Gloria, Et in terra, and many others, for two to eight voices.

[4][5][6] George J. Buelow, a scholar of Baroque music, renders it: "In two to eight parts, polyphonic settings of the Mass Ordinary, Collects, Prefaces, various Amen and Gloria intonations, and songs for Compline".

Another group (pieces 50 to 77) contains different settings of the chants around communion (Praefatio, Sanctus, Benedictus, Agnus Dei), and a complete mass for eight parts.