Background: Pre-eclampsia has emerged as a significant concern in maternal healthcare worldwide, impacting the health and well-being of expectant mothers and their unborn children. This study examines the extent of pre-eclampsia knowledge and awareness among Saudi women aged 18 to 49. Recognising informed and proactive healthcare decisions is pivotal in managing and preventing pre-eclampsia.Methods: It is a prospective cross-sectional community-based study design. We calculated a minimum sample size of 385 participants using the Raosoft online calculator, aiming for a 5% margin of error and a 95% confidence interval. The structured questionnaire was distributed via various social media platforms to collect the data. The questionnaire consisted of two sections, namely demographics and medical history. Additionally, the questionnaire explored pre-eclampsia risk factors, symptoms, and complications. We analysed data using the Statistical Package for the Social Sciences (SPSS) version 26 (IBM Corp., Armonk, NY). We applied statistical tests, including the Chi-squared test (χ2) and the Mann-Whitney test for nonparametric variables.Results: Most of our participants were young, with a mean age of 25.94 and single (69.5%). Moreover, many (68.8%) had a bachelor's degree. A notable portion of participants stated they had no family history (86.1%) of pre-eclampsia and (98.1%) no previous experience with pre-eclampsia. Approximately 50% recognised hypertension as a symptom, while 44.1% identified persistent headaches. However, complications such as fetal and maternal death were better-known consequences of pre-eclampsia. 11.3% of participants had adequate knowledge about pre-eclampsia, 39.3% had moderate knowledge, and 49.4% had inadequate knowledge. It is a fact that higher levels of knowledge are positively correlated with advanced age, prior pregnancy experience, and a family history of pre-eclampsia.Conclusion: This study highlights the limited knowledge and awareness of pre-eclampsia among Saudi women of reproductive age. Addressing this knowledge gap is crucial for preventing pre-eclampsia-related maternal and fetal complications. Policymakers and healthcare providers should consider implementing educational programs to raise awareness and improve outcomes for pregnant women in Saudi Arabia and similar regions.