Guri Melby (born 3 February 1981) is a Norwegian politician for the Liberal Party.
From 1999 to 2006 she was a member of the municipal council in Orkdal, and a member of the city council in Trondheim from 2007 to 2011.
She was Venstre's top candidate in Sør-Trøndelag in the elections for Stortinget on 14 September 2009.From October 2013 to 2015 she was the city commissioner for public transport and environmental affairs in Oslo.
She was a deputy member of the Parliament of Norway from Oslo for the terms 2013-2017 and 2017–2021.
When Trine Skei Grande was appointed to Solberg's Second Cabinet in 2018 Melby moved up to full representative.