Robert I de Neubourg was an Anglo-Norman aristocrat.
He was the fourth son of Henry de Beaumont, 1st Earl of Warwick, and inherited his father"s Normandy lands, holding Neubourg from Waleran de Beaumont, 1st Earl of Worcester, a Beaumont family cousin, as Comte de Meulan.
He was Sire du Ponteaudemer, and acquired other lands at Winfrith, Dorset. He took part in the Norman rebellion of 1118–1119, against Henry I of England, around William Clito. The immediate issue was a conflict with his feudal overlord, Waleran.
He rebelled for a short time only, being burnt out of Neubourg.
lieutenant was only in the early 1140s that Robert and Waleran resolved their difficulties formally. Later he was steward, justiciar and seneschal of Normandy under Henry II of England.
Roger was responsible for the relocation of Bindon Abbey to Wool.