The Moscow organist Konstantin Volostnov was born in Moscow in 1979. He began studying organ music in Maria Potashnikova's class in Sergei Prokofiev Music School. From 1994 to 1999 he studied in the Academic Music College of The Moscow Tchaikovsky Conservatory (piano and organ classes of Alexei Shmitov).

In 2004 Konstantin Volostnov graduated from The Moscow Tchaikovsky Conservatory where he studied with Professor Alexei Parshin (organ), Yuri Martynov (piano), and Professor Alexei Lyubimov (chamber ensemble). In 2007 Konstantin Volostnov got a diploma of Staatliche Hochschule fur M&DK in Stuttgart where he took lessons from Professor Dr. Ludger Lohmann and in the same year Konstantin finished postgraduate course of The Moscow Tchaikovsky Conservatory (organ class of Professor Natalia Gureeva). In October 2013 Konstantin made his last examination: for the first time in the history of Stuttgart Musikhochschule he's got a Diploma "with distinction" as postgraduate student of organ class.

Konstantin Volostnov is a winner of the First Prize at the E.F.Walcker-prize in Schramberg (Germany, 2008) and First Prize at A.-F.Goedicke competition in Moscow (2008). In 2009 he became a winner (First prize) at St.Albans organ competition (UK) where he also got Peter Hurford prize (for the best performance of Bach’s work), Audience prize, and the prize for the best performance of Sacrificium by John Casken.
Konstantin is a regular participant of the contemporary music festival "Moscow Autumn" (2001-2015) and the Moscow International Organ Festival (2001-2011).
He has recorded 20 CDs (modern music 2004, 2009 Moscow Conservatoire, Six organ sonatas by Mendelssohn 2006, 2008, Great organ works 2006, recording of the historical monument – organ of Riga cathedral, first ever recording of the Moscow International Performing arts center organ 2016, all Bach’s Toccatas, Concertos and Sonatas recorded on Porthan organ in St. Mary church in St.Petersburg, and others). He also has been recording for radio and TV broadcasts. Since 2005 to 2006 he was appointed as an artistic director of the Federal Philharmonic society of Caucasian Mineral Waters region. In 2012 he founded International festival in the most beautiful Moscow Palaces – Tsaritsino.

Konstantin Volostnov has collaborated with such leading conductors as Kent Nagano, Jean-Christophe Spinosi, Vladimir Ashkenazy, Mikhail Pletniov and Vladimir Yurovsky. He gives concerts throughout EU, UK, US, Canada and Russia, including concerts in Birmingham City hall, St.Albans Cathedral, Chartres Cathedral, Haarlem St. Bavo, Cathedral in Santiago de Compostela, Notre Dame de Montreal, Essen and Bamberg Philharmonie, Moscow Conservatoire Great hall and House of music. Between 2013 and 2018 he has performed three times the complete Bach organ series in Moscow and St.Petersburg (on the historical "Bach-organ" in St.Mary church). Since 2010 till 2022 he taught at Moscow State Tchaikovsky Conservatory.