Haeundae Beach, Beach resort in Haeundae District, South Korea

Haeundae Beach is a sand beach in Haeundae District, Busan, stretching along a bay with views of high-rise buildings and the open sea. The sand is pale and fine, and gentle waves roll onto the shore, while a wide boardwalk behind the beach is lined with palm trees, benches, and public showers.

The beach began as a fishing ground for nearby residents and was used as a leisure space from the late 19th century. Under Japanese colonial rule (1910–1945), Japanese settlers taught their children to swim here. During the Korean War (1950–1953), the U.S. military was stationed at the beach and prepared it for landing ships. It officially opened in 1965 and was designated a special tourist area in 1994.

The beach hosts the Polar Bear Festival every January, when several thousand people bathe in near-freezing water, and the Haeundae Sand Festival, Korea's only sand-related eco-festival, with sand artwork and activities for visitors. It also hosts the Busan International Film Festival and has staged e-sports events for games such as StarCraft.

The shore is divided into numbered zones, which help with orientation during crowded summer months. Lifeguards patrol from June through August, and toilets and changing rooms are located at regular intervals along the boardwalk.

On 2 August 2008, 7,937 parasols were counted on the sand between 10 a.m. and 4 p.m., a figure submitted as a Guinness record. Three months later Guinness rejected the claim because parasols are not a globally shared cultural practice.