Dissemination of weed seeds, weed seedlings, and shoots of perennial weeds along with transplanted rice(Oryza sativaL.) seedlings was observed in farmers’ fields in Guimba, Nueva Ecija, Philippines. The percentage of weed seedlings and shoots in bundles of rice seedlings to be transplanted into the field ranged from 4–5 to 14.2% in the wet season and from 3.0 to 8.7% in the dry season. Grasses comprised 63% of the weed seedlings in the wet season and 81% in the dry season. The number of weed seeds disseminated with the rice seedlings ranged from 271 to 683 per bundle. Mainly sedges and broadleaf weeds were disseminated in this manner. Possible ways of reducing dissemination of weeds with rice seedlings are suggested.