Lawn bowls at the 1999 Southeast Asian Games took place in the Hassanal Bolkiah National Stadium in Bandar Seri Begawan, Brunei from 7 to 15 August 1999.^{[1][2][3][4][5][6]}

  *   Host nation (Brunei)

Rank	Nation	Gold	Silver	Bronze	Total
1	Malaysia (MAS)	4	1	1	6
2	Brunei (BRU)*	1	2	3	6
3	Singapore (SIN)	1	2	2	5
4	Thailand (THA)	0	1	0	1
Totals (4 entries)		6	6	6	18

Event	Gold	Silver	Bronze
Singles	Brunei Pengiran Tengah Tajuddin	Singapore Chai Hon Yoong	Malaysia Syed Mohamad Syed Akil
Pairs	Malaysia Ibrahim Jusoh Mohamed Tazman Tahir	Brunei Haji Naim Brahim Lokman Salleh	Singapore Irvin Leishman Robin Tessensohn
Fours	Malaysia Firdaus Ghuas Jozaini Johari Zuraidi Puteh Sazeli Sani	Brunei Piut Matris Mat Rasil Ahmad Abdul Ghafar Taha Salleh Awang Hitam	Singapore Goh Eng Han Sarbo George Abraham Arumugam Samynathan

Event	Gold	Silver	Bronze
Singles	Singapore Rosemary Tessensohn	Malaysia Saedah Abdul Rahim	Brunei Amalia Matali
Pairs	Malaysia Siti Zalina Ahmad Nor Hashimah Ismail	Singapore Mary Cheah Eok Lim Yong Yew Foong	Brunei Mahanim Hussin Suhana Daud
Fours	Malaysia Nor Azwa Mohamed Di Siti Hawa Ali Bah Chu Mei Haslah Hassan	Thailand Anong Gantanant Vivatana Itipanitong Jintana Visanuvimoi Mayuree Healy	Brunei Sharitah Normah Siti Aishah Bakar Lilimaryani Salleh Rainah Abdul Samat