Leendert Cornelis van der Vlugt (13 April 1894 – 25 April 1936) was a Dutch architect in Rotterdam. In the architects office Brinkman & Van der Vlugt he was responsible for the architecture of the Van Nelle Factory, a listed monument of the UNESCO World Heritage Site since 2014.
After the death of the Rotterdam architect Michiel Brinkman in 1925, his son Johannes Brinkman, a constructional engineer, took over the architectural office and made Leendert van der Vlugt co-director. The new practice was called J.A. Brinkman & L.C. van der Vlugt, (Vlugt pronounced as "Vlücht").
The activities of the Brinkman & Van der Vlugt office lasted only about ten years because Leendert van der Vlugt has died in 1936 (Hodgkin's disease). Shortly after the death of Jan Duiker in 1935, the Netherlands lost with Leendert van der Vlugt a second young architectural talent. Both architects had created buildings of international rank: the Van Nelle Factory in Rotterdam by Leendert van der Vlugt and the Zonnestraal Sanatorium in Hilversum by Jan Duiker.