FJL can refer to:
Fly Jinnah, a low-cost airline based in Pakistan, by ICAO code Federico Jiménez Losantos, a Spanish radio presenter and rightist pundit Rangomaramidae, a family of flies, by Catalogue of Life identifier Forum for Jewish Life, an organization which English rabbi Naftali Schiff had been involved in
See also
Frans Johan Louwrens Ghijsels (1882–1947) or F. J. L. Ghijsels, a Dutch architect