The direct and site‐specificsynthesis of β‐fluorinated γ‐butyrolactams via AgNO3 mediated decarboxylative fluorination of β‐carboxyl‐γ‐butyrolactams using Selectfluor® as a fluorine source was described. The β‐fluorinated γ‐butyrolactams including chiral derivatives were obtained in moderate to good yields.