John Collier (1850–1934) was an English artist and writer, known for his distinctive work as a Pre-Raphaelite and portrait painter. Born into a prominent family, Collier trained at the Slade School of Fine Art in London and under the guidance of Pre-Raphaelite artist Lawrence Alma-Tadema.

Collier's art is characterized by meticulous detail, vibrant colors, and often, a dramatic narrative quality. He was adept at both historical and contemporary subjects, blending realism with a romantic sensibility. His portraits, which include those of leading figures of his time, are particularly noted for their depth of character and technical skill.

Apart from his artistic career, Collier was also a writer. He authored a book on the art of painting, "A Primer of Art," and contributed to various magazines. His work as an artist was widely appreciated during his lifetime, and he exhibited regularly at the Royal Academy and other prestigious venues.

Collier's legacy lies in his ability to capture the essence of the Pre-Raphaelite movement while also contributing to the evolution of portrait painting in the late 19th and early 20th centuries. His paintings are celebrated for their elegance, rich detail, and the seamless integration of classical and contemporary elements.