We found two type of meaning about IATA. Just check below :-
IATA = International Air Transport Association
I = International
A = Air
T = Transport
A = Association
About = International Air Transport Association is the full form of IATA is an international industry trade group of airlines head-quartered in Montreal, Quebec, Canada, where the International Civil Aviation Organization is also head-quartered. The executive offices are at the Geneva Airport in Switzerland.
One more IATA full form is given below.
IATA = International Amateur Theatre Association.
It’s a non-governmental organization for national centers theatres and individuals faithful to promoting understanding and education through theatre.