<b>Ecosystem Services and Perception of Water Quality of Lake Barombi Kotto, Cameroon</b> This study carried out in BarombiKotto was aimed at assessing ecosystem services provided by Lake BarombiKotto and its riparian vegetation and to determine the level of awareness of this community to threats to degradation of water quality and riparian vegetation. Two hundred semi structured questionnaires were administered to the inhabitants of BarombiKotto village using the purposive sampling method. The Likert rating method was used to derive quantitative data that was further analysed using SPSS version 17. Results revealed that, respondents depended on the lake and vegetation for the provision of water for drinking, domestic purposes, irrigation, transport, recreational and cultural activities and also on forest benefits like wood for fuel, construction and medicinal plants. Significant associations were found between age group, level of education and respondents’awareness about the threats to water quality and sustainable practices. Agriculture, harvest of wood for construction, high fishing rates, increasing abundance of aquatic weeds were identified as major threats to Lake BarombiKotto and its surrounding vegetation. Water quality attributes like reduced transparency, lake depth, and other parameters such as aquatic weeds and fish stocks have changed in Lake BarombiKotto. The absence of conventional waste management facilities in BarombiKotto community and poor sanitary conditions of toilets could be responsible for the contamination of this lake and hence the high prevalence of typhoid, dysentery and other gastrointestinal infections among respondents. Ecosystem services, Water quality, Riparian vegetation, Lake BarombiKotto 1739-1746 Issue-3 Volume-3 Awo Miranda Egbe | Beatrice Ambo Fonge | Pascal Tabi Tabot