Richard Ludvig Philip Weibull Winther (23 July 1926, Maribo – 30 August 2007, Vindeby, Denmark) was a Danish artist. He focused on painting, graphics, photography and sculpture. Richard's work was influenced by Asger Jorn and Richard Mortensen, both Danish artists part of the Linien group.

Winther was the youngest of three children, born to Carl Christian Winther and Ely Maria Ricardis Weibull. He grew up in a sugar factory. Interested in the arts from an early age, Winther began creating art at age ten and exhibited his paintings during high school, inspired by the Linien (The Line) artists. Records of his work date back to the early 1940s. His father, an engineer, influenced Winther's systematic approach to both work and other interests. Motivated by his father and older brother Lambert's passion for photography, Winther began taking photographs at ten and later built cameras to move beyond conventional photography. He experimented with various techniques, including drawing, painting, photography, film, graphic printing, sculpture, and collage. He also explored writing, as well as textile and furniture design, often blending themes across these mediums.

Richard Winther was a student at the Royal Danish Academy of Fine Arts where later he became a professor. He founded the exhibition group Linien II (1947–52), a follow-up from Linien with other young artists. This work initially focused on a spontaneous-abstract style of painting but with time transformed into a geometric-abstract type of movement. Linien II was primarily associated with the concrete art movement. Subsequently, Winther experimented with some of the abstract characteristics of the De Stijl/Konkret Art movements, bringing those styles into parts of his work. He also adventured into lithography during the 1950s. Later, his focus shifted to painting the human body. He was a member of Eks-Skolen, which was founded in 1961 by one of his friends, the artist Poul Gernes. There, he taught several upcoming artists, including Per Kirkeby. Winther's interest in photography from his childhood never diminished—he dedicated a significant part of the 1960s to the technique, which he would revisit time after time throughout the following decades, including his final years.

Richard Winther's work is marked by particular themes such as Hieronymus and the biblical flood. Many of these themes fit the idea of recycled classicism. Between 1994 and 2007 he took the idea of recycling forward, making many of his pieces in cardboard. This theme developed, as Winther's work began to build on the lives and works of previous artists. An example of this approach is illustrated by the pieces Winther generated on Wie, referring to the Danish neoclassical sculptor Johannes Wiedewelt. Gammel Holtegaard exhibited several of these pieces in 2005.

Richard Winther received several awards for his work: the Eckersberg Medal in 1971, the Thorvaldsen Medal in 1997, and the Prince Eugen Medal.

Richard Winther was also involved in the movie The Wake directed by Michael Kvium and Christian Lemmerz where he was the character St Patrick.

He was a member of the following groups: Arme og Ben, Decembristerne, Linien II, and Den Frie Udstilling.

There was a permanent collection of his work at the Silkeborg Kunstmuseum in Denmark, THE EX-SCHOOL, that ran until 16 December 2022. The exhibition features some of the most striking works from the Ex-School's active period (1961–1969), along with later pieces by its representatives, including Per Kirkeby, Peter Louis-Jensen, Richard Winther, Bjørn Nørgaard, Poul Gernes, Roger Martyn Pring, Lene Adler Petersen, and John Davidsen.