Rombaken or Rombaksfjord is a fjord branch of the Ofotfjorden in the municipality of Narvik in Nordland county, Norway. The fjord has a length of about , and is surrounded by steep mountainsides. The European route E06 and European route E10 highways run along the northern and southern shores of the fjord. The Hålogaland Bridge, under construction since February 2013 and expected to be completed in 2017, is being built across the mouth of the Rombaken fjord to shorten the travel time from Narvik to Harstad.