The disclosure relates to a new and distinct variety of lettuce variety NUN 09111 LTL as well as seeds and plants and heads or leaves thereof. NUN 09111 LTL is a green Multileaf lettuce variety of medium size for the spring, summer, and autumn seasons, comprising resistance to Downy Mildew (Bremia lactucae) isolates Bl:16-35 EU and Lettuce Mosaic Virus (LMV).