Antenatal depression (AD), a maternal mental health condition, has been increasingly prevalent in recent years. It is often triggered by various stressors, including hormonal changes, relationship problems and economic challenges. In Ghana, there is currently no recent nationally representative prevalence data on AD, despite a number of studies conducted in various regions.

Review will include observational studies which employed standardised diagnostic criteria or validated screening tools. We will search the PubMed, SCOPUS, African Index Medicus (AIM), Science Direct, Web of Science (WoS) and Google Scholar databases. The African Journal Online (AJOL) will also be handsearched. Targeted grey literature search will include selected tertiary institutional repositories, Ghana Health Service, Ministry of Health and Mental Health Authority websites. Studies in English will be included with no limits to date. Data extraction will be performed by two independent reviewers using a structured table, with a third reviewer resolving any discrepancies. Quality assessment of included studies will be conducted using the adapted National Institiute of Health (NIH) Quality Assessment Tool for observational studies. Pooled prevalence estimates will be calculated using a random-effects meta-analysis if studies are sufficiently homogeneous and subgroup analysis.

Given that this study involves no primary data collection, an ethical review is not necessary. The findings will be disseminated through publication in a peer-reviewed journal, presentations at academic conferences and key national stakeholder events.

CRD42025644715.