Polonia / Is a Visa required for a Polish person traveling to Vietnam? [6]

Yes, Vietnam visa is required for Polish citizens.
You may apply for a visa at the Vietnam Embassy in Poland:

Embassy of Vietnam in Warszawa, Poland

Address: UL Resorowa 36 02-956 Warszawa, POLAND
Phone: (4822) 651 6098
Fax: (4822) 651 6095
Email: vnemb.pl@mofa.gov.vn

or apply a visa on arrival via vietnamvisabooking. at lower cost.