L Storm is a 2018 Hong Kong action thriller film directed by David Lam, and starring Louis Koo and Julian Cheung, alongside Kevin Cheng, Stephy Tang, Patrick Tam, Michael Tse and Adam Pak in his debut film role.
The third installment in a pentalogy, preceded by Z Storm and S Storm, and succeeded by P Storm and G Storm, L Storm was theatrically released in Hong Kong on 23 August 2018.