Denys Vasilyev (; born 8 May 1987) is a Ukrainian professional footballer who plays as a centre back.
Vasilyev is a product of FC Knyazhe Schaslyve and RVUFK Kyiv Youth Sportive Schools.
After playing for Ukrainian clubs in the different levels, in June 2014 he signed a contract with Kazakhstani FC Taraz from the Kazakhstan Premier League.
He played for Ukrainian Naftovyk-Ukrnafta Okhtyrka from the Ukrainian First League.