The Personal Public Service Number (PPS Number) (Irish: Uimhir Phearsanta Seirbhíse Poiblí, or Uimh. PSP) is an identifier issued by the Client Identity Services section of the Department of Social Protection, on behalf of the Minister for Social Protection in Ireland.. The PPS Number was known as the Revenue and Social Insurance Number (RSI No) until 1998.

Siri is a Scandinavian feminine given name.It is a short form of Sigrid, from Old Norse Sigríðr, composed of the elements sigr "victory" and fríðr "beautiful". The variant Siri has been widely used since the Middle Ages, [citation needed] it was common in Norway until the 18th century, when its usage declined, but saw new high popularity in the 20th century.