Estonian Technical and Sport Union

Estonian Technical and Sport Union (abbreviation ETSU; Eesti Tehnika- ja Spordiliit) is an Estonian organization, which deals with technics-related sports.

ETSU is established on 25 June 1990.

ETSU is an umbrella organization for seven sub-organizations:
 * Eesti Automudelispordi Klubi (member of EOC )
 * Eesti Laevamodellistide Liit (member of EOC )
 * Estonian Radio Amateurs' Union (Eesti Raadioamatööride Ühing) (member of EOC )
 * Noorte Spordi- ja Tehnikaklubi Master
 * Ida-Virumaa Automudelispordi Klubi
 * MTÜ Sindi Mudelisport
 * MTÜ Mudelihall