Does Pa mean Pounds of Pressure?

Pa is an SI (metric) unit of pressure. 1 Pa - 1 kg/(m-s2) or 1 N/m2. N is Newton, which is 1 kg m/s2.
English units of pressure can be psi (pounds per square inch, or lbs/in2), psf (pounds per square foot, lbs/ft2) , or some other unit of force divided by an area.

Pascal (unit)