Yoan Isakov Leviev (Bulgarian: Йоан Левиев) (October 31, 1934 in Plovdiv, Bulgaria – March 11, 1994 in Plovdiv, Bulgaria) was a Bulgarian artist, painter, and creator of monumental artworks such as large-scale mosaics and murals.

He completed school in 1952 at the Iliyana Dimitrova School in Plovdiv. In 1958, he graduated in monumental and decorative painting at the National Art Academy in Sofia in the class of Professor Georgi Bogdanov. From 1960 onwards, he regularly took part in exhibitions in Plovdiv and collective exhibitions by the Union of Bulgarian Artists, of which he became a member in 1961. The same year, he spent two months in Italy.

Leviev was a member of the innovative Plovdiv School of the 1960s. This group also included Encho Pironkov, George Bozhilov, Dimitar Kirov, Kolyo Vitkowski, and Hristo Stefanov, known as the "April Generation".

Leviev's work encompasses easel and monumental painting, mural painting, decorative panels, and mosaics. From 1970 onwards, he held numerous solo exhibitions in Plovdiv, Sofia, Varna and abroad, including in Warsaw, Prague and Los Angeles.

Leviev took part in collective exhibitions in youth biennales in Paris (1961 and 1963). His first solo exhibition was in Sofia in 1973, at the Union of Bulgarian Artists Gallery at 6 Shipka Street.

Other solo exhibitions included those in 1975 and 1981 at the Autumn Art Exhibitions in the Old Town, Plovdiv, at the gallery at 125 Rakovski Street in Sofia in 1979. A jubilee exhibition of paintings and drawings was held in 1984 in the Old Town, Plovdiv, and shown again in 1985 at the Shipka Six Gallery in Sofia.

The year 1986 saw an exhibition of Leviev's work at galleries in Los Angeles, USA. Other exhibitions in the US were held in 1989 ("Watercolours from Bulgaria", and in 1991 at the Lori Kaye Gallery, Garden Grove, CA (Orange County), featuring a solo exhibition with 20 works from the "Song of Solomon" series.

There was a solo exhibition at the Serdica Gallery in Sofia in May 1991.