| Event: | Judo |
| Games: | 1987 |
| Prev: | 1985 |
| Next: | 1989 |
The Judo at the 1987 Southeast Asian Games was held between 11 September to 15 September at Senayan Sports Complex.
| Below 65 kg |  Yosoont Boonyaleka |  Jumantoro |  Tan Soon Onn | |
| Extra-light (+60 kg) |  Jerry Dino |  Tail Jein | Agus Priyono Salim | |
| Half-light (60–65 kg) | Yosoont Boonyaleka | Jumantoro | Tan Soon Onn | |
| Light (65–71 kg) | Bambang Prakarsa | Edmond Tan | K. Polsak | |
| Half-middle (71–78 kg) | Andrea Macion | Than Maung | Liber Sianthri | |
| Middle (78–86 kg) | Hussabo Rajachaniva | Liber Sianthri | Oscar Bautista | |
| Below 71 kg | Bambang Prakarsa | Tan Yoke Ban | T. Panulsukk | |
| Below 95 kg | Hengky Titral | C. Supot | Than Htay | |
| Above 95 kg | Ho Yen Chye | Rene McNremmy | Perrence Pantouw | |
| Open | Perrence Pantouw | Ceto Cosadek | Ho Yen Chye Than Maung |
| Up to 48 kg | Piraya Sontanaluck | Yeni Idayani | Than Than Tin |
| Below 53 kg | Kiu Kiu Myint | Prateet Sirima | Chua Cheng Nei |
| Half-light (48–52 kg) | Kyi Kyi Wai | Prateet Sirima | Chua Cheng Nei |
| Below 56 kg | Enny Tri Astuti | Y. Lamain | See See Myint |
| Light (52–56 kg) | Enny Tri Astuti | Lani Yardthong | Hla Hla Mint |
| Half-middle (56–61 kg) | Thant Phyu Phyu | Erna Puspitawati | only two competitors |
| Half-middle (61–66 kg) | Helena Papilaya | Somporn Yompdakdee | only two competitors |
| Below 73 kg | Khin Mu Mu | Pujawati Utama | Soonluk |
| Above 73 kg | Supatra Yompakdee | Joice Rumampuk | |
| Open | Helena Papilaya | Ida Iriani | Thant Phyu Phyu Chua Cheng Nei |