Ralph I (died 926) was a French Count of the Vexin, Amiens and Valois.
He was the son of Heilwise, daughter of Eberhard, Margrave of Friuli and Hucbald de Gouy, Count of Ostrevent.
The following year, he became part of King Charles the Simple's entourage in Herstal.
The chronicler Flodoard records him as being a follower of Duke Hugh the Great in 925, when he sealed a treaty with the Normans.
[1] In 924 he married Hildegard, daughter and heiress of Count Ermenfroi of Vexin, Amiens and Valois.