I just looked it up and it seems not, PullTheBricksDown
Some diplomatic passport holders will also be IPPs - though it doesn't follow automatically - but diplomatic immunity and IPP status appear to be completely different processes:
What IPP status means
Automatic state-funded security:
Individuals with this status are entitled to security from the host country and their own government, regardless of where they travel.
International protection:
The Convention on the Prevention and Punishment of Crimes against Internationally Protected Persons mandates that signatory states prevent attacks on the person, freedom, or dignity of such individuals.
Who is included:
Typically includes Heads of State, heads of government, ministers for foreign affairs, and other high-ranking officials or representatives of international organizations, along with members of their families who accompany them.
Role-based, not passport-based:
Holding a diplomatic passport does not automatically confer IPP status. The status is tied to the person's official role and the purpose of their visit, not the type of passport.
IPP status vs. diplomatic immunity
IPP status is about security:
It is a designation focused on physical protection from harm while traveling abroad.
Diplomatic immunity is about legal protection:
It provides immunity from the criminal and civil jurisdiction of the host country for official acts.
Different legal frameworks:
IPP status is governed by the Convention on the Prevention and Punishment of Crimes against Internationally Protected Persons, while diplomatic immunity is established through separate agreements like the Vienna Convention on Diplomatic Relations.
Waiver is key for immunity:
Diplomatic immunity can be waived, but only by the sending state, not by the individual diplomat themselves