Background: This aim of this study was to explore the role of regulation on the quality of care of older people living with depression in LTC, which in this paper is a domestic environment providing 24-h care for people with complex health needs and increased vulnerability. Methods: We conducted a systematic scoping review. A peer reviewed search strategy was developed in consultation with a specialist librarian. Several databases were searched to identify relevant studies including: Embase (using the OVID platform); MEDLINE (using the OVID platform); Psych info (using the OVID platform); Ageline (using the EBSCO platform); and CINHAL (using the EBSCO platform). Articles were screened by three reviewers with conflicts resolved in consultation with authors. Data charting was completed by one reviewer, with a quality check performed by a second reviewer. Key themes were then derived from the included studies. Results: The search yielded 778 unique articles, of which 20 were included. Articles were grouped by themes: regulatory requirements, funding issues, and organizational issues. Conclusion: The highly regulated environment of LTC poses significant challenges which can influence the quality of care of residents with depression. Despite existing evidence around prevalence and improved treatment regimens, regulation appears to have failed to capture the best practice and contemporary knowledge available. This scoping review has identified a need for further empirical research to explore these issues.