Samuli Miettinen (b. 1967) is a founding partner of JKMM Architects (f. 1998). In his career he has worked especially as a principal designer of public buildings. As the essence of the design, he emphasizes the importance of architecture, the high quality of the environment and humanity.

Miettinen’s personally most significant completed design works are Viikki wooden church in Helsinki 2005, Joensuu University annex building Aurora II (2006), Saunalahti Children’s Centre in Espoo (2011), Travel Centre in Lahti (2016), Bysa & Sandis residential block in Helsinki (2017), the plan for Pohjola’s old headquarters area and the first residential buildings in Helsinki (2013–2021) and the Tammela Stadium hybrid project (2023). He has also been active in e.g. as an architect designer of Turku library and Hämeenlinna Verkatehdas cultural center.

Now he works e.g. as the principal designer of the expansion project of the National Museum of Finland (2026), Swedish Cultural campus and co-educational school in Pori (2025) and Nordic School in Helsinki (2027).

Samuli Miettinen has visited as a lecturer and teacher in Finland and abroad and has written for Architectural publications. He has also acted as a judge and member of the award boards of many domestic and foreign architectural competitions. In 2006–2009 he was the chairman of the Association of Finnish Architects’ Offices ATL and in 2007–2009 on the board of the Finnish Architects’ Association SAFA. Miettinen was the vice president of the Finnish Architecture Museum in 2013–2018. Miettinen was awarded the state award for architecture in 2007.

In his career, Miettinen, together with the partners of JKMM Architects, has been successful in more than 100 architectural competitions, of which he won almost 50 first prizes.