Background: The most efficient and cost-effective forms of birth control are long-acting reversible contraceptives (LARC). In spite of their effectiveness, less than 15% of women globally who are of reproductive age use LARC while in Kenya, 18% of women of reproductive age are using LARC methods. The objective of the study was to determine the level of knowledge on LARC among Women of Reproductive Age (WRA) receiving care at the Meru Teaching and Referral Hospital. Methods: This study used analytical cross-sectional survey research design to collect data from ten key informants chosen through purposive sampling, and 170 women were chosen by systematic random sampling using a semi-structured questionnaire. Embu Teaching and Referral Hospital served as the pretesting site for the research tools. Chi-square tests were utilized to examine the relationship, at a 95% confidence interval, between the uptake of LARC and level of knowledge of LARC. The strength of association was tested using regression analysis. Results: The majority of the mothers (51.2%) were in the 20–29 age range, with a small percentage (n=5, 2.9%) being older than 40; the married women were more (n=106, 62.4%) and half of the mothers had secondary level of education (n=85, 50%) unlike that of the partner that was found to be mostly tertiary level of education (n=102, 60%). A larger proportion of the women had 1-2 living children (n=106, 62.4%). However, majority of the women were either house wives or students (n=63, 37.1% and n=60, 35.3%) respectively. A high percentage of the women were Christian (n=153, 90%) with a larger proportion residing on rental houses (n=122, 71.8%). The uptake rate for LARC among women who were of reproductive age was 11.2%. Good level of knowledge influenced LARC uptake at x2(N=170), 5.16, p=.018. Conclusion: The study concluded that LARC uptake among women of reproductive age was impacted by individual level of knowledge on LARC. The study recommends, the ministry of hea