A pattern forming method is a method of forming a pattern on a surface of an object by using a droplet discharge device that discharges a first droplet and a second droplet from nozzles. The pattern forming method includes when coordinates on the object surface are represented by integers m and n, and two integers other than zero are represented by i and j, forming a bank pattern that borders a pattern formation region such that a range of a first projection image of the first droplet when a landable position with a coordinate (m, n) substantially coincides with the center of the first projection image and a range of a second projection image of the second droplet when a landable position with a coordinate (m+i, n+j) substantially coincides with the center of the second projection image fall within the pattern formation region on the surface of the object; and forming a pattern that covers the pattern formation region by discharging the first droplet to the landable position with the coordinate (m, n) and by discharging the second droplet to the landable position with the coordinate (m+i, n+j). Further, the distance between the landable position with the coordinate (m, n) and the landable position with the coordinate (m+i, n+j) is determined such that the first droplet and the second droplet flow into each other after the first and second droplets spread on the pattern formation region.