Its shorter east-west counterpart Pieni Roobertinkatu ("little Robert street") is located near it in Kaartinkaupunki.
The Finnish names were Ropertin Suurikatu and Ropertin Pikkukatu ("Robert's great street" and "Robert's little street", respectively) in a 1866 map, and in the 1890s the names were changed to Iso and Pikku Robertinkatu, made official in 1909.
[2] Reserving Iso Roobertinkatu mainly for public transport and pedestrian traffic was first proposed at different boards of the city council of Helsinki in the 1950s.
[5] Streets crossing Iso Roobertinkatu include from east to west: Yrjönkatu, Annankatu, Fredrikinkatu, Albertinkatu and the short street Kivenhakkaajankatu, leading from the end of Iso Roobertinkatu to Punavuorenkatu running in the same direction.
At the start of the street is the 1995 modern sculpture Viheltävä helsinkiläinen ("the whistling Helsinkian"), donated by sculptor Björn Weckström to the city of Helsinki.