Release dates for
The Secret of NIMH (1982) More at IMDbPro »

Country	Date
USA	2 July 1982
West Germany	15 July 1982
France	8 December 1982
Argentina	9 December 1982
Denmark	13 December 1982
Netherlands	16 December 1982
Portugal	16 December 1982
Sweden	17 December 1982
Finland	25 December 1982
Australia	5 May 1983
Hungary	28 April 1988
France	7 February 2001	(re-release)
Finland	14 November 2005	(Oulu International Children's Film Festival)
Netherlands	19 September 2010	(KLIK! Amsterdam Animation Festival)

La ratoncita valiente	Argentina (imdb display title) / Peru (imdb display title)
A Jóia Encantada	Portugal
A NIMH titka	Hungary (imdb display title)
A Ratinha Valente	Brazil
Brisby e il segreto di NIMH	Italy
Brisby et le secret de NIMH	France
Brisby och NIMHs hemlighet	Sweden (imdb display title)
Cudezni grm	Slovenia
Cudotvorni grm	Yugoslavia (imdb display title) (Croatian title)
Dzielna pani Brisby	Poland
Fru Brisbys hemmelige verden	Denmark (imdb display title)
Mette Mus' hemmelige verden	Denmark (DVD title)
Mrs. Brisby and the Rats of NIMH	USA (working title)
Mrs. Brisby und das Geheimnis von NIMH	West Germany
NIMH - fru Brisbys hemliga värld	Finland (Swedish title)
NIMH - rouva Brisby ja hänen salainen maailmansa	Finland (imdb display title)
Nimh, el mundo secreto de la señora Brisby	Spain
Nimhs hemmelighet	Norway (imdb display title)
O Segredo de NIMH	Portugal (imdb display title)
Oi peripeteies tis kyrias pontikinas	Greece (transliterated ISO-LATIN-1 title)
Rouva Brisby ja hänen salainen maailmansa	Finland (TV title)
Skrivnost cudeznega grma	Slovenia (imdb display title)
To mystiko ton NIM	Greece (video title)