Alexander Porokhovshchikov (1892-1941) – he tested one of the first Russian aircraft in Riga in 1911, and  the first tank in 1915. Shot in Moscow in 1941. >>

Pyotr Prokofyev (1925-2000) – a specialist of Nuclear Physics, Full Member of  Latvian Academy of Sciences. >>

Alexander Pugachev (1912–1994) – Professor, Rector of  the Riga Civil Aviation Engineers Institute    from 1965 to 1972. >>

Vladislav Pugachov (1940) – Habilitated Doctor of Engineering,  noted specialist in the field of research of electrical machines, magnetic fields and constant magnets. >>

Valentina Pugo (1938-1991) – Candidate of Technical Sciences, Docent of the Riga Polytechnic Institute, spouse of the former Communist party leader Boris Pugo (1937-1991). >>

Nadezhda Pugasey (1926–?) – Candidate of Technical Sciences, Docent of the Chair of Light Industry Machinery and Technology at the Riga Polytechnic Institute. >>