Fluid regulators are disclosed. An example apparatus includes a vale body, a valve seat, and protrusions. The valve body has an inlet and an outlet. The valve seat is located within the valve body and is positioned between the inlet and the outlet. The protrusions are formed by and extend along an inner wall of the valve body between the valve seat and the outlet, and end adjacent the outlet. At least one of the protrusions is spaced relative to others of the protrusions. The protrusions are to increase a uniformity of a flow pattern of fluid flowing through a cross-section of the outlet. Each of the protrusions has a central axis oriented perpendicularly to a corresponding surrounding portion of the inner wall.