Abstract: A bathtub partitioning device for limiting the effective usage area of a bathtub. The bathtub partitioning device includes a partition having a top side, a bottom side, a front side, a back side, a first lateral side and a second lateral side. The partition comprises a resiliently compressible material. A biasing member is positionable between the first lateral wall of the partition and an inner surface of one of a pair of lateral walls of a bathtub such that the partition is biased toward the other of the lateral walls of the bathtub. The partition frictionally engages the bathtub when the partition is positioned in the bathtub such that each of the lateral sides of the partition is abutting one of the lateral walls.