DisplayPort is a digital display interface developed by the Video Electronics Standards Association (VESA). The interface is primarily used to connect a video source to a display device such as a computer monitor, though it can also be used to transmit audio, USB, and other forms of data.

The VESA specification is royalty-free. VESA designed it to replace VGA, DVI, and LVDS by creating a high performance standard. Backward compatibility to VGA and DVI by using adapter dongles enables consumers to use DisplayPort fitted video sources without replacing existing display devices. Although DisplayPort supports much of the same functionality as HDMI, it is expected to complement the interface, not replace it.

The first version, 1.0, was approved by VESA on May 3, 2006. Version 1.1a was approved on April 2, 2007 followed by the current standard 1.2 on December 22, 2009.

DisplayPort is the first display interface to rely on packetized data transmission, a form of digital communication found in other technologies like Ethernet, USB, and PCI Express. It supports both internal and external display connections, and unlike legacy standards where differential pairs are fixed to transmitting a clock signal with each output, the DisplayPort protocol is based on small data packets known as micro packets which can embed the clock signal within the data stream. The advantage is a lower number of pins to achieve higher resolutions. The use of data packets also allows for DisplayPort to be extensible, meaning additional features can be added over time without significant changes to the interface itself.