The lettuce variety Nasimento is disclosed. The invention relates to seeds, plants, plant cells, plant tissue and harvested products as well as to hybrid lettuce plants and seeds obtained by repeatedly crossing plants of Nasimento with other lettuce plants. The invention also relates to plants and varieties produced by the method of essential derivation from plants of Nasimento and to plants of Nasimento reproduced by vegetative reproduction methods including but not limited to tissue culture of regenerable cells or tissue from Nasimento.