Johann Wilhelm Baumeister was a German veterinarian and animal painter.

The son of the drawing teacher Johann Sebald Baumeister. His father wanted him to become a clergyman, so he came to the Präceptorat in Aalen in 1817, but he returned within a year. He then studied painting in Augsburg and Munich and after only two years he was able to make a living from his paintings. In 1825, however, he turned to veterinary medicine and went to Stuttgart. After only one year, he was able to complete his studies with a prize. He then practiced as a veterinarian in Gmünd.

A lithographic representation of the ailments of the horse with an explanatory text in 1827 was awarded a medal from a higher authority. In 1829, his father died and he now had to support his mother and younger siblings. With the help of Privy Councillor Sick, he became a teacher at the Agricultural Institute in Hohenheim in 1831. He used his talent as a painter to illustrate animals. From 1839 he was a professor at the Veterinary School in Stuttgart (teacher of anatomy, pathological anatomy and animal breeding).

Baumeister was a talented horse painter who illustrated his own publications.