Albertus Gerardus "Gerard" Bilders (9 December 1838 – 8 March 1865) was a Dutch landscape-painter, associated with some members of the Hague School, as Anton Mauve and Willem Maris.

Bilders was financially supported by the Dutch writer Johannes Kneppelhout who lived in Oosterbeek since 1851, where he inhabited a rural estate and invited several young artists as his protégés[1][circular reference].

In 1860 they traveled together to the 'Exposition Générale des Beaux-Arts' in Brussel where he became acquainted for the first time in his life with the painters of the French School of Barbizon.

Here he tried to reproduce the moods that the Dutch flat landscape evoked by using peculiar light effects as well as 'a colored, fragrant warm grey.'

At the end of 1856 and beginning of 1857 Gerard Bilders was frequently visiting the Mauritshuis in The Hague, where he studied and copied the paintings of 17th century Dutch landscape painters, in particular the works of Paulus Potter and Jacob Ruisdael.".