Krimpen aan den IJssel (Dutch pronunciation: [ˈkrɪmpə(n) aːn də(n) ˈɛisəl] ⓘ) is a town and municipality in the western Netherlands, in the province of South Holland.

Before the 20th century, the two principal industrial employers were the brick factory Mijnlieff and the shipyard Van der Giessen de Noord.

In 1958 it was completed together with the Algera Bridge which connects Krimpen with Capelle aan den IJssel.

In the mid 1960s, Krimpen became a commuter town for people working in Rotterdam, resulting in major expansion.

Today most of the municipality has been built up, except for the Krimpenerwaard where the town council aims to retain the rural character.