Schärer or Schaerer is a Swiss surname. Notable people with the surname include:
Céline Schärer (born 1990), Swiss triathlete Erich Schärer (born 1946), Swiss bobsledder Peter Schärer, Swiss bobsledder Willy Schärer, (1903–1982), Swiss middle-distance runner Ludwig Schaerer (1785–1853), Swiss pastor and lichenologist Eduardo Schaerer (1873–1941), Swiss-Paraguayan politic leader and President of Paraguay between 1912 and 1916 Santiago Schaerer (1834–1895), Swiss colonizer and settler Arturo Schaerer (1907–1979), Paraguayan journalist and entrepreneur