OSLO, Jan 19 (Reuters) - Norway's central kept its key policy rate unchanged at 2.75% on Thursday, as expected by a majority of economists surveyed by Reuters, and said it aimed for a hike in March.

Of the 26 economists polled in advance, 15 had anticipated an unchanged rate on Thursday while 11 had bet on an increase of 25 basis points (bps). (Reporting by Victoria Klesty, editing by Terje Solsvik)