Thahanam Gaha

{{Infobox film

| name = Thahanam Gaha
තහනම් ගහ

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| director = Christy Shelton Fernando

| producer = Winson Films

| writer = Christy Shelton Fernando

| based_on =

| starring = Anoja Weerasinghe
Cyril Wickramage
Dilhani Ekanayake

| music = Sarath Wickrama

| cinematography = Andrew Jayamanne

| editing = Elmo Halliday

| studio =

| distributor = CEL Circuit

| released = {{Film date|2002|07|18|df=yes}}

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| country = Sri Lanka

| language = Sinhala

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Thahanam Gaha (Forbidden Tree) ({{langx|si|තහනම් ගහ|italic=yes}}) is a 2002 Sri Lankan Sinhala political thriller film directed by Christy Shelton Fernando and produced by Ranjith K. Perera for Winson Films.{{cite web | url=http://www.sundaytimes.lk/020623/tv/2.html#1 | title='Thahanam Gaha': A film with a political flavour | publisher=Sunday Times| accessdate=29 November 2019}} It stars Anoja Weerasinghe, Cyril Wickramage and Dilhani Ekanayake in lead roles along with Asoka Peiris and Shashi Wijendra. Music composed by Sarath Wickrama.{{cite web |url=http://www.sarasaviya.lk/2015/09/24/?fn=sa15092427 |title=Sri Lankan Screened Films |publisher=Sarasaviya |accessdate=11 March 2017}} It is the 1165th Sri Lankan film in the Sinhala cinema.{{cite web | url=http://www.nfc.gov.lk/films-history.php | title=Sri Lanka Cinema History | publisher=National Film Corporation of Sri Lanka | accessdate=3 October 2016}}