The most important and recent subject that affects and worries mankind is the issue of waste and its management. Waste can be described in a relative or subjective term; relative because it is viewed in different ways by different persons or group of people and subjective because what is waste to some may not necessarily be to others. The aim of this study was to assess the effect of training on market women's level of awareness and their disposition towards solid waste management in Lagos State, Nigeria. A 2×2 schematic type of quasi-experimental design was used for this study. The population for this work consists of all market women selling raw farm produce in Lagos State. A sample of forty women was selected from two markets using a simple random sampling technique. A questionnaire on "effect of training on market women's awareness level on solid waste management" was used, having a reliability co-efficient (r) of 0.84 was established. Analysis of Co-Variance (ANCOVA) was used to analyze the data while post-hoc analysis was further used to identify which of the variables allowed for the significant effect in the study. The three formulated hypotheses were rejected showing that there is a significant effect among training on level of awareness, change in behaviour and rate of patronage of waste infrastructures in the respective markets sampled. It was concluded that more efforts from private bodies, government and even market officials should be saddled with the responsibility of sensitizing these market women in other states so that waste management can be a thing to be practiced in our respective houses.