Ladner was created as a fishing village on the banks of the Fraser River. It is a part of the Municipality of Delta, British Columbia, Canada, and a suburb of Vancouver.

Named for one of the founding families, it developed as a center for farming and fishing. The ferry at Captain's Cove allowed for access across the river to Richmond, British Columbia. The George Massey Tunnel provided a permanent connection in 1959.

Ladner and its suburban neighbour to the south, Tsawwassen, make up the unofficial region known as "South Delta".

Ladner is bound to the west by the Strait of Georgia, the south by Tsawwasen, to the east by North Delta, and north by the Fraser River. Ladner is bisected by Highway 17, which runs north-south from Highway 99 to the BC Ferries terminal. The term East Ladner is often applied to the portion of the community east of the highway. The major east-west artery is called Ladner Trunk Road - which, if traveled far enough east, turns into Highway 10. West of Arthur Drive, a north-south road that connects it with Tsawwassen, it is simply called 47A Avenue.

River Road runs east from the north end of Highway 17 along the Fraser River into North Delta and Surrey. The area between Highway 17 and North Delta is referred to as Tilbury and is one of the major industrial centres of the Lower Mainland, with many large warehouses, industrial parks and factories.

Lying to the south of the delta of the Fraser River, there are numerous islands just off the mainland that are part of Ladner. Most are small and only reachable by boat, with exceptions like Westham Island, which hosts a large bird sanctuary and is dedicated to protecting and preserving the numerous bird species found in the area, especially bald eagles and various owl species. Westham Island is a fairly large island and a popular destination for its numerous organic farms, especially its berry farms.