A stable marriage is the basis of any well-functioning and morally upright society across the world. However, recent portray a discouraging trend, as many marriages around the world are falling apart, Kenya being deeply affected. Meru County is one of the regions in Kenya with high numbers of single-parent families and many reported cases of domestic violence. This study examined the role of traditional marriage rites on marital stability among the Ameru People in Kenya. The study was based on the Symbolic Interactionism theory of Social Psychology and was implemented using the mixed methods research design. The study was conducted in Meru County and targeted all residents therein, numbering 1,145,114 in total. All catholic churches in one ward within the research area were selected by cluster sampling and used to reach the respondents. Data was collected using the marriage rights questionnaire and the marital stability questionnaire. Data was analyzed using Partial Pearson’s correlation analysis at 0.05 alpha level. Results indicated a strong positive association between the sampled respondents’ marriage rights scores and their marital stability scores. All the four Ameru marriage rights i.e. pre-marriage preparation, courtship, dowry payment, and traditional wedding ceremonies were found to be significant contributors to marital stability among the Ameru people and should therefore be practiced by the latter to guarantee stable marriages.