Avdo Međedović (c. 1875 – 1955) was a guslar (gusle player and oral poet) from Montenegro. He was the most versatile and skillful performer of all those encountered by Milman Parry and Albert Lord during their research on the oral epic tradition of Bosnia and Herzegovina and Montenegro in the 1930s. At Parry's request, Avdo sang songs he already knew and some songs he heard in front of Parry, convincing him that someone Homer-like could produce a poem so long. Avdo dictated, over five days, a version of the well-known theme The Wedding of Meho Smailagić that was 12,323 lines long, saying on the fifth day to Nikola (Parry's assistant on the journey) that he knew even longer songs. On another occasion, he sang over several days an epic of 13,331 lines. He said he had several others of similar length in his repertoire. In Parry's first tour, over 80,000 lines were transcribed.
 Many years afterward The Wedding was published in 1974 by Lord with a parallel English translation. Avdo Međedović died in 1955 in Yugoslavia. Albert Lord wrote after his death that "it may well be that he was the last of the truly great epic singers of the Balkan Slavic tradition".
 Međedović was a Muslim of Albanian origin, born in the village of Obrov, near Bijelo Polje (now in Montenegro) in 1875, while it was a part of the Ottoman Empire. His family had Serbian Orthodox ancestry, being related to the Rovčani tribe and coming from Nikšić, having been converted in the past centuries, though Avdo himself did not know when or why the family converted to Islam. He worked as a butcher in his teens, as his father and brother were butchers. After two years there he joined the army, where he served at various locations and in different positions; he spent three years on the Bulgarian border, and was then sent to an officer's school in Salonica; he recalled saying that he "rotted for a year and emerged a sergeant". After seven years he returned home, but was soon recalled to join the army again and served a year and a half.
 During his second tour with the army, Međedović was wounded and spent 45 days in a hospital; while one bullet was removed, another remained in his arm. Two years after, he got a small farm in Obrov and married; according to a custom, he did not know the girl prior to the wedding. At that time he was 29 years old, and they had three sons.
 Avdo learned Turkish in the army, though he never learned to read or write in any language.
It is unclear what his mother tongue was; while he spoke Serbo-Croatian, it was not his first language, though he also knew some Albanian.[better source needed]
 He was the most versatile and skillful performer of all those encountered by Milman Parry and Albert Lord during their research on the oral epic tradition of Bosnia and Herzegovina and Montenegro in the 1930s. Parry recorded epic songs sung by Međedović in July and August 1935. Lord writes that "Avdo had a repertory of fifty-eight epics; Parry recorded nine of these on phonograph discs and Nikola Vujnović, Parry’s assistant, wrote down four others from Avdo's dictation." 
 Conversations with Avdo were also recorded, "499 discs on both sides, or nearly one-seventh of the 3,584 twelve-inch records in the entire Parry Collection from the 1930s". 
 Albert Lord, who worked with Parry as a student in 1935, returned to Avdo in 1950-1951; he recorded three more songs. Lord notes that "Avdo could sing songs of about the length of Homer’s Odyssey. An illiterate butcher in a small town of the central Balkans was equaling Homer’s feat, at least in regard to length of song."
 The origins of two of Avdo's songs are known. He learned "The Wedding of Meho" from his friend, who read the poem to him five or six times from a printed source. Despite of this, Avdo's oral version is very different from original published one, and much more descriptive:
 It had been written down in 1885 by F. S. Krauss from an eighty-five-year old singer named Ahmed Isakov Šemić in Rotimlje, Hercegovina, and had been published in Dubrovnik in 1886. It was later reprinted, with minor changes in dialect, in cheap paper editions in Sarajevo, without notes and introduction. In this form it was read to Avdo. Krauss’s text has 2,160 lines; Avdo’s in 1935 had 12,323 lines and in 1950, 8,488 lines. ... The opening scene of "The Wedding of Meho, Son of Smail" is an assembly of the lords of the Turkish Border in the city of Kanidža. In Krauss’s published version this assembly occupies 141 lines; Avdo’s text has 1,053 lines. Avdo learned from many men, firstly from his father Ćor Huso Husein of Kolašin "whose reputation seems to have been prodigious". Lord mentions that though Avdo had a great endurance and mastery as a poet, "his voice was not especially good. He was hoarse, and the goiter on the left side of his neck could not have helped." in 1935 Lord asked Međedović to recall a song he heard only once, for this he asked another guslar, Mumin Vlahovljak of Plevlje, to sing his song "Bećiragić Meho", unknown to Međedović. After he heard the song of 2,294 lines, he sung it himself, but made it almost three times longer, 6,313 lines.