Grethe Werner (28 May 1928 – 30 October 2014) was a Norwegian sportswoman, a pioneer in women's sport in Norway, active in handball, gymnastics and track and field athletics.
She was born in Oslo, and was married to Olaf Evjenth.
She represented the clubs Grefsen IL (handball), Oslo Turnforening (gymnastics), and Torshaug IF (track and field).