We report a case of a 27-year-old female nonsmoker diagnosed with ALK-rearranged metastatic lung adenocarcinoma….Germline BRCA2 p.F2801fs was also identified….Afterward lorlatinib plus olaparib was started and elicited a rapid response within 1 month. The progression-free survival was 6 months as of the latest follow-up, with the best response of partial response. To the best of our knowledge, this case is the first to provide clinical evidence of antitumor activity of olaparib plus ALK TKI in ALK-positive, gBRCA-mutated metastatic NSCLC.