Abstract: A mobile patient lift system comprising: a frame assembly; the frame assembly including, a plurality of inter-lockable modular vertical frame posts, a plurality of variably lockable corner and vertical couplers, a top horizontal support bar with a lifting eye. The system further comprises a patient suspension bar; a lifting means; a driver bar assembly; two caster wheel assemblies with wheel locks; and optionally at least one horizontal stabilizer bar connectable between the modular vertical frame posts via T-shaped couplers. The mobile patient lift system is for use in lifting patients in hospitals, homes and other interior spaces.