Sonda
Sonda can refer to:

 Sonda (rocket), a type of Brazilian-built sounding rocket
 Sonda (TV series), a Polish television popular science series broadcast between 1977 and 1989
 Sonda, Estonia, a settlement in Estonia
 Sonda, Karnataka, India
 Sonda, Nadia, a census town in West Bengal, India
 Sonda S.A., a Chilean company

As an acronym, SONDA can refer to:
 the Sexual Orientation Non-Discrimination Act, a law in New York State passed in 2002