{{Short description|Welsh poet}} {{Use dmy dates|date=December 2021}} '''Deio ab Ieuan Du''' (fl. 1460–1480) was a Welsh language poet from Ceredigion, west Wales.
Deio composed eulogies to the nobility of the area, including Gruffydd Fychan, a supporter of Jasper Tudor.
His works were edited in 1992 by A. Eleri Davies along with those of Gwilym ab Ieuan Hen.
==See also== {{portal|Poetry}} [http://cy.wikisource.org/wiki/Categori:Deio_ab_Ieuan_Du Deio ab Ieuan Du at Wikisource]
==Bibliography== A. Eleri Davies (ed.), ''Gwaith Deio ab Ieuan Du a Gwilym ab Ieuan Hen'' (University of Wales Press, 1992)
{{authority control}}
{{DEFAULTSORT:Deio Ab Ieuan Du}} Category:Welsh-language poets Category:15th-century Welsh poets
{{Wales-poet-stub}}