Pierre Adolphe Valette was a French Impressionist painter. His most acclaimed paintings are urban landscapes of Manchester, now in the collection of Manchester Art Gallery. Today, he is chiefly remembered as L. S. Lowry's tutor, although there has been a renaissance of interest in his work in recent years.
Valette came to the UK for work and in 1907 was invited to join the staff as a teacher at the Manchester Municipal School of Art. His French teaching style, painting by demonstration, was new to the United Kingdom. Lowry expressed great admiration for Valette, who taught him new techniques and showed him the potential of the urban landscape as a subject. Valette's  paintings are distinctively Impressionist; a style that suited the damp fogginess of Manchester.


In recent years exhibitions of his work have been held at Manchester City Art Gallery in 1976 and in 1994. The Lowry Centre, Salford held a hugely successful exhibition between November 2011 and January 2012 and in 2018 the Manchester Art Gallery dedicated a special room to display the works of Valette side by side with those of Lowry.