Roberta Materi (born April 6, 1975 in Regina, Saskatchewan) is a Canadian curler from White City, Saskatchewan. She currently throws second stones for the Michelle Englot rink. Materi has played with Englot off and on since 1997. She missed two seasons (2004–05 and 2005–06) since then to have children. Materi played in her first national championship when the rink qualified for the 2001 Scott Tournament of Hearts. The team finished with a 4-7 record, missing the playoffs. Later that year, the team finished 5-4 at the 2001 Canadian Olympic Curling Trials, also missing the playoffs.