Jean-François Dandrieu (c. 1682 – 17 January 1738) was a French Baroque composer, harpsichordist and organist.
In 1700, aged 18, he started playing the organ at the Saint-Merri church in Paris (a post previously occupied by Nicolas Lebègue) and became its titular organist in 1705. At some point in 1706 he was a member of the panel of judges who examined Jean-Philippe Rameau's skills to appoint him organist of the Sainte-Madeleine en la Cité church. In 1721 he was appointed one of the four organists of the Chapelle royale of France. In 1733, he succeeded his uncle, the organist and priest Pierre Dandrieu (1664-1733) to become the organist of the (now destroyed) church of St Barthelémy in the Île de la Cité. He died in Paris in 1738, and was succeeded at the organ of St Barthelémy by his sister, Jeanne-Françoise.
A volume of organ pieces was published posthumously in 1739 and contained, among other works, some pieces by Jean-François' uncle, Pierre Dandrieu. Dandrieu also published an academic treatise on accompaniment (Principes de l'accompagnement) in 1718, which now serves as an important source of information on the musical practice of the era.
Dandrieu's harpsichord writing is reminiscent of that of François Couperin. Dandrieu's harpsichord oeuvre is, after those of François Couperin and Jean-Nicolas Geoffroy, the most important in terms of sheer quantity of pieces.