Kehamilan trimester III merupakan periode rentan terhadap perubahan fisik dan psikologis, sehingga dukungan suami sangat penting untuk menjaga kesehatan mental ibu. Penelitian ini bertujuan mengetahui hubungan antara dukungan suami dengan kesehatan mental ibu hamil trimester III di UPTD Puskesmas Padasuka Kota Bandung. Metode yang digunakan adalah analisis korelasi kuantitatif dengan desain cross sectional, melibatkan 21 ibu hamil yang dipilih melalui kuota sampling. Instrumen penelitian berupa kuesioner dukungan suami dan SRQ-20, kemudian data dianalisis dengan uji Chi-Square menunjukkan 11 responden (52%) mendapat dukungan suami dan 15 responden (72%) tidak mengalami gangguan mental. Hasil uji statistik nilai P Value 0,02 maka terdapat hubungan signifikan antara dukungan suami dengan kesehatan mental ibu hamil. Kesimpulannya, maka semakin besar dukungan suami semakin kecil resiko terjadinya gangguan mental pada ibu hamil. Oleh karena itu, perlu ditingkatkan dalam proses kehamilan guna mendukung kesehatan mental ibu hamil. The third trimester of pregnancy is a vulnerable period due to physical and psychological changes, making a husband’s support crucial for maintaining maternal mental health. This study aimed to determine the relationship between husband support and mental health among third-trimester pregnant women at UPTD Puskesmas Padasuka, Bandung. The method used was quantitative correlation analysis with a cross-sectional design, involving 21 pregnant women selected through quota sampling. The research instruments consisted of a husband support questionnaire and the SRQ-20. Data were analyzed using the Chi-Square test, which showed that 11 respondents (52%) received support from their husbands and 15 respondents (72%) did not experience mental health disorders. The statistical test resulted in a p-value of 0.02, indicating a significant relationship between husband’s support and the mental health of pregnant women. In conclusion, the greater the support from the husband, the lower the risk of mental health disorders in pregnant women. Therefore, increasing husband support during pregnancy is essential to promote maternal mental health.