Wiechers is a surname. Notable people with the name include:
Alfredo Wiechers Pieretti (1881–1964), Puerto Rican architect Enrique Graue Wiechers (born 1951), Mexican academic and ophthalmologist Jim Wiechers (1944–2018), American golfer
See also Casa Wiechers-Villaronga, is a Neo-classical style mansion in Ponce, Puerto Rico Wiechers-Sport, is a German auto racing team