Edward Bernard Raczyński (December 19, 1891 – July 30, 1993) was a Polish aristocrat, diplomat, writer, politician and President of Poland in exile (between 1979 and 1986). He was both longest living (102), and oldest Polish President (took office at 88, left at 95).

Count Edward Bernard Maria Raczyński was born December 19, 1891 in Zakopane, to a Polish aristocratic family. His father was Count Edward Aleksander Raczyński of Nałęcz Coat of Arms, and his mother Róża née Countess Potocka. The Raczyńskis were related to the Austro - Hungarian house of Habsburgs. The full name was "Raczyński z Małyszyna", as they were a branch of the noble family Nałęcz - Małyski from Greater Poland (the area of the town of Wieluń) and about 1540 took their name from the estate of Raczyn near Wieluń. However, the Raczyńskis remained relatively unknown until the 18th century, when four of them became Senators of Poland under different reigns. One of the Raczyńskis became a Knight of the Order of the White Eagle during the reign of king August the Strong, six of them were awarded the Virtuti Militari order during the time of Duchy of Warsaw and three received the same distinction during the November Uprising of 1831. The title of Count was awarded to different branches of the family by Prussian Kings Friedrich Wilhelm III (in 1824) and Wilhelm II (in 1905). One of their kin was a Knight of the highest Prussian Order of the Black Eagle.

Raczyński spent most of his childhood in Cracow, in the family palace Pod Baranami and in the family palace in Rogalin in Greater Poland. He studied law in Lipsk, Cracow, and London (the London School of Economics) and was awarded a doctorate of the Jagiellonian University in Cracow in 1915. In November 1918, Raczynski joined the army of the ressuscitated Poland, from which he was called to the diplomatic service in may 1919. Until 1925, he was employed in the Polish embassies and missions in Bern, Copenhagen and London. Back in Warsaw, he became the head of the department of international agreements. The same year Raczyński married Joyous née Markham, daughter of a British coal mining mogul. His wife died soon afterwards and on August 25, 1932 he married his second wife, Cecylia Maria née Jaroszyńska, by whom he had three daughters. Earlier the same year Raczyński was appointed Polish ambassador to the League of Nations and in 1934 he became the ambassador of the Republic of Poland in the United Kingdom. On behalf of Poland, he signed the Polish - British alliance (25 august 1939) which ultimately led the United Kingdom to declare war on Nazi Germany after its aggression on Poland.

Following the Polish Defensive War Raczyński remained in London where he continued to serve as the ambassador of the Polish Government in Exile and one of its prominent members. Between July 22, 1941 and July 14, 1943 he was also the Polish Minister of Foreign Affairs in the cabinet of Władysław Sikorski. In this capacity, he provided the Allies with one of the earliest and most accurate account of the ongoing Holocaust ("The mass extermination of Jews in German occupied Poland", Raczynski's "Note addressed to the Governments of the United Nations on December 10th, 1942") and pleaded for action.

After 1945, when the government of the United Kingdom broke the pacts with Poland and withdrew support for the Polish government, Raczyński remained in London, where he acted as one of the most notable members of Polish diaspora there. He was active in various political and social organisations in exile, including the Fundusz Pomocy Krajowi (Help for the Country Fund) which actively supported the democratic opposition in communist controlled Poland. Between 1954 and 1972 he was one of the members of the Council of the Three, the collective presidential body of the Polish government in exile. He was also a member of the Committee for Polish Affairs and an advisor of various British governmental agencies and ministries.

In 1962, his second wife Cecylia Maria née Jaroszyńska died. In March 1979, Raczyński became President in exile, after being previously chosen by the outgoing President Stanisław Ostrowski. In turn, he chose as his successor Prime Minister Kazimierz Sabbat.

During the Raczyński presidency (1979 - 1986) the Solidarity movement was established in Poland. Raczyński played an important role in raising awareness about the events in Poland in Western countries and in establishing closer ties with the opposition movement in Poland. President Raczyński at some point considered naming Władysław Bartoszewski as his successor, as he wanted to choose someone "from the country" and with strong ties to the Polish opposition movement. Bartoszewski, however, declined the offer. After serving a 7-year term he resigned from his post on April 8, 1986. He was the last Polish President-in-Exile who had held an important office during the era of the 2nd Republic: his successors, Kazimierz Sabbat and Ryszard Kaczorowski were in their twenties at the outset of the Second World War. As he left office he received a praise for reuniting the Polish political emigration and reshaping the Government in exile.

At the age of 97, Raczyński married, his third wife, Aniela Lilpop, thus legalizing a union of many years. Edward Raczyński died July 30, 1993, in London as the last male descendant of his line. His coffin was placed in the mausoleum of his family located at the chapel in Rogalin. In his last will and testament, Count Raczyński bequeathed his family's palace in Rogalin, and his library to the Polish nation. He was the longest living Head of State in Poland's history and one of the very few centenarians among European politicians of the 20th century.