Vakhtang Kotetishvili was a philologist, psychologist, ethnographer, and sculptor. In 1911, he graduated from the Tbilisi Theological Seminary, and in 1914 from the Faculty of Pedagogy at the St. Petersburg Psycho-Neurological Institute. In 1918, he completed his studies at the Faculty of History and Philology at Tartu University, and in 1929 he graduated from the Tbilisi State Academy of Arts under the tutelage of pedagogue Iakob Nikoladze.
Starting in 1926, Kotetishvili taught folklore at Tbilisi State University. From 1929, he initiated and led courses in poetics, the theory of sculpture, and history. He traced the ancient mythical roots of Georgian folklore and, taking into account socio-historical circumstances, dated individual oral traditions.
In 1933, he became the deputy director of the Georgian State Museum. In the 1930s, he was branded an enemy of the people and became a victim of Soviet repression.
His sculptures are preserved in the Georgian Art Museum.