Nechtan or Nectan may refer to:
Kings Nechtan Morbet (), king of the Picts Nechtan nepos Uerb (), king of the Picts Nechtan mac Der-Ilei (died 732), king of the Picts
Other people Nechtan of Aberdeen (), bishop of Aberdeen Saint Nectan of Hartland (), associated with Devon and Cornwall Saint Nectan, nephew and disciple of Saint Patrick
Mythology Nechtan Scéne, a character in the Irish Ulster Cycle Nechtan (mythology), an Irish god Nechtan mac Collbran, an Irish mythological character in the Voyage of Bran
See also Neithon of Alt Clut (), King of Strathclyde
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