During the planning stages for Line 5 Eglinton, the station was given the working name
Don Mills. In 2015, a report to the TTC Board recommended giving a unique name to each station in the subway system (including Line 5 Eglinton). Thus, the station was named
Science Centre to reflect its proximity to the
Ontario Science Centre (similar to
Museum station, which is adjacent to the
Royal Ontario Museum) and to avoid confusion with the existing
Don Mills station on
Line 4 Sheppard. In April 2023, the Ontario provincial government announced plans to move the Science Centre to
Ontario Place (near the opposite terminus of the Ontario Line). In June 2024, the government announced that the Science Centre would close permanently following an engineering report that cited a significant risk of roof collapse. On March 28, 2025, as a result of the closure, Metrolinx announced that the station would be renamed
Don Valley to reflect the station's proximity to the
Don Valley Parkway, the
Don River, and the Don Valley itself. Other names considered for the station were
Concorde,
Industrial District,
Olympia Square,
Ferrand, and
Don River. == Nearby landmarks ==