I've Loved You So Long (French: Il y a longtemps que je t'aime) is a 2008 drama film written and directed by Philippe Claudel in his directorial debut. It stars Kristin Scott Thomas as a woman who struggles to interact with her family and find her place in society after spending fifteen years in prison. Elsa Zylberstein, Serge Hazanavicius, Laurent Grévill, and Frédéric Pierrot appear in supporting roles.

The film had its world premiere at the 58th Berlin International Film Festival on 14 February 2008, and was theatrically released in France on 19 March 2008, by UGC Distribution. It grossed over $23.4 million worldwide and received positive reviews from critics, who particularly praised Scott Thomas' performance and Claudel's screenplay. At the 62nd British Academy Film Awards, it won Best Film Not in the English Language and was nominated for Best Actress in a Leading Role (for Scott Thomas) and Best Original Screenplay (for Claudel). It garnered six nominations, including Best Film, at the 34th César Awards and won two: Best First Feature Film and Best Supporting Actress (for Zylberstein). The film was also nominated for Best Actress – Drama (for Scott Thomas) and Best Foreign Language Film at the 66th Golden Globe Awards.