The street sign comes in two languages – Lithuanian and Polish – and was unveiled on the eve of the centenary of Poland's independence.
Attending the unveiling ceremony, Lithuanian Prime Minister Saulius Skvernelis underlined that the Polish leader, who was tragically killed eight years ago, can truly be called a friend of Lithuania and supporter of bilateral cooperation.
"We have no partner closer historically, culturally and emotionally than Poland. And it's the achievement of President Lech Kaczynski who was an outstanding friend and supporter of Lithuania. Today, by naming squares and streets of Lithuania after President Kaczynski, we validate the president's contribution to harmonious relations between Lithuania and Poland. With no doubt, this personality has definitely left a clear footprint in the modern history of the two republics," the prime minister said.
The Thursday's ceremony was also attended by Seimas Speaker Viktoras Pranckietis, Vilnius Mayor Remigijus Šimašius and Valdemar Tomaševski, a Lithuanian MEP and leader of the Electoral Action of Poles in Lithuania – Christian Families Alliance.
President Kaczynski, his wife and many other high-ranking Polish officials died in a plane crash in Russia in 2010.
The City Council of Vilnius last February decided to name the nameless street next to the municipality building after the neighboring country's late president.