Alfred Frederik Elias Grenander (26 June 1863 – 14 March 1931) was a Swedish architect, who became one of the most prominent engineers during the first building period of the Berlin U-Bahn network in the early twentieth century.

After his final degree in 1890 he became a site engineer at the construction of the new Reichstag building under the direction of Paul Wallot and continued his career in the architectural office of Alfred Messel.

[2] In 1896 Grenander set up his own business and worked as a designer of the Hochbahngesellschaft, an affiliate of Siemens & Halske established in 1897 to build the first U-Bahn elevated railway of Berlin, opened in 1902.

While the first stations were designed in an Art Nouveau (Jugendstil) or Neoclassical style, he later preferred a Modern architecture.

In 2009, the public area in front of Krumme Lanke station in Berlin-Zehlendorf was named in his honour.