One point perspective is a drawing technique that creates the illusion of depth and space on a two-dimensional surface, such as a piece of paper or canvas. It is a type of linear perspective that relies on the use of lines to render objects, leading to the illusion of space and form in a flat work of art. One point perspective gets its name from the fact that it utilizes a single vanishing point, which is the point on the horizon line where all parallel lines appear to converge. Other forms of linear perspective include two-point perspective and three-point perspective, which use two and three vanishing points respectively.

To draw in one point perspective, the horizon line is first defined, which is the line that divides the ground from the sky. A vanishing point is then placed on the horizon line, before basic shapes are drawn. Orthogonals, which are receding diagonal lines, are drawn to define the form of the objects extending towards the singular vanishing point. This technique is usually appropriate when the subject is viewed "front-on" or when looking directly down something long, like a road or railway track. One point perspective is popular among architects and illustrators, especially when drawing room interiors.

One point perspective is a mathematical way of representing a three-dimensional image on a two-dimensional surface, by using intersecting lines that all go back to the same point in the distance. It was first discovered during the Renaissance, and has been the most central tenet of visual art since its invention by Italian artist, architect and all-round Renaissance man Filippo Brunelleschi in the 15th century.