Kas Oosterhuis (1951) is a Dutch architect, professor and co-founder of the innovation studio together with visual artist Ilona Lénárd. He was a professor at Delft University of Technology (TU Delft) from 2000 to 2016 and has been a professor at Qatar University since 2017. His office, ONL, has realized a number of innovative, contemporary architecture projects including the Salt Water Pavilion at Neeltje Jans, the Web of North Holland at the 2002 World Expo in Haarlemmermeer, the A2 Cockpit in the Sounder Barrier at Leidsche Rijn, Utrecht and the Liwa Tower in Abu Dhabi.