As the number of mental illnesses increases, there is a need to manage it holistically within a multidisciplinary team. The majority of patients with physical disabilities suffer from mental health problems, and physiotherapy can play a role in improving their lifestyle. This study aimed to determine physiotherapists' self-reported knowledge and attitudes regarding their role in treating patients with mental health disorders. This study adopted a descriptive, cross-sectional, and prospective observational survey design. The sample consisted of 208 physical therapists. The majority of the participants, (48%) had a positive attitude score, with (40%) having a neutral attitude and (12%) having a negative attitude toward treating patients with mental health issues. Most respondents (86%) reported that they need more information regarding patients with mental health disorders and physiotherapists' management of their physical health issues. Many physiotherapists lack knowledge and hold a neutral to negative attitude towards treating patients with mental disorders. This highlights the need for more training to fill the gap in knowledge and guide physiotherapists to build upon their positive attitude towards treating patients with mental disorders.