Nalinda Jayatissa secured the highest preferential votes in the Kalutara District, amassing 371,640 votes.

The National Peoples' Power (NPP) has won eight (08) seats in Kalutara District.

Rajitha Senaratne and Vidura Wickremanayake, who contested under the New Democratic Front (NDF) in Kalutara, were unable to secure seats in Parliament.

NPP 
- Nalinda Jayatissa – 371,640 votes  
- Nilanthi Kottahachchi – 131,375 votes  
- Nihal Abeyasinghe – 96,721 votes  
- Sanjeewa Ranasinghe – 78,832 votes  
- Dhanushka Ranganath – 74,502 votes  
- Oshani Umanga – 69,232 votes  
- Chandima Hettiaratchi – 50,509 votes  
- Nandana Padmakumara – 50,452 votes  

SJB – 
- Ajith Perera – 43,975 votes  
- Jagath Vithana – 43,867 votes  

NDF  
- Rohitha Abeygunawardena – 10,204 votes