The meaning of the name Hayden is "From The Hay Downs". The origin of the name Hayden is English.
The surname Hayden has several origins. In some cases it is a form of O'Hayden, which is derived from the Irish Ó hÉideáin and Ó hÉidín. These latter surnames mean "descendant of Éideán" and "descendant of Éidín", respectively; the Irish personal names Éideán and Éidín are likely derived from the Irish éideadh, which means "clothes", "armour".