Saint Mummolin of Noyon (or Mummolinus, Momelin, Mommolenus, Mommolinus, Mommolin; died c. 686) was a monk who became an abbot in Saint-Omer, then Bishop of Noyon-Tournai in Belgium.

[2] The monks of St Augustine's Abbey, Ramsgate wrote in their Book of Saints (1921), Mummolin (St.) Bp.

S. MUMMOLIN was born on the shores of the Lake of Constance, and spent his early years in the monastery of Luxeuil, under S. Eustasius.

When sent forth to preach the Gospel, he went with S. Bertin and S. Ebertram, natives likewise of the shores of Constance, to their countryman, S. Omer, in the land of the Morini, and was gladly received by him.

S. Mummolin built a little monastery on a hill rising out of the wide dreary marshes, and became the head of number of disciples.

His body was interred in the church of the apostles, and is now richly enshrined in the cathedral of Noyon, but part of his skull at Saint Bertin's.