Hardy-Littlewood maximal operator, generalized fractional maximal operator, generalized fractional integral operator, singular integral operator MSC (2010) Primary: 42B25, Secondary: 42B35We introduce the notion of generalized weighted Morrey spaces and investigate the boundedness of some operators in these spaces, such as the Hardy-Littlewood maximal operator, generalized fractional maximal operators, generalized fractional integral operators, and singular integral operators. We also study their boundedness in the vector-valued setting.