I. Dragoslav or Ion Dragoslav (iˈon draɡoslav), pen names of Ion V. Ivaciuc or Ion Sumanariu Ivanciuc (iˈon sumaˈnarju ivanˈt͡ʃʲuk; June 14, 1875 – May 5, 1928), was a Romanian writer. His presence on the local literary scene meant successive affiliations with various competing venues: having debuted with the traditionalist and nationalist magazine Sămănătorul, he later connected the eclectically conservative Convorbiri Critice group of Mihail Dragomirescu with the Romanian Symbolist movement leaders Alexandru Macedonski and Ion Minulescu, before moving close to the modernist trend of Eugen Lovinescu and his Sburătorul.
Noted for his contributions to fantasy, children's literature and memoir, Dragoslav defied inclusion in the genres illustrated by his public commitments. His work, often described as picturesque but mediocre, is primarily indebted to Ion Creangă, through him, to folkloric tradition.
A native of Fălticeni to a peasant family, Ivaci