Vjekoslav Kobešcak (born 20 January 1974) is a Croatian former water polo player.
He competed in the 1996 Summer Olympics, in the 2000 Summer Olympics, and in the 2004 Summer Olympics for the Croatian national team.
He is the head coach of VK Jug.
His father Vlado is a former president of the Croatian Water Polo Federation, while his brother Dario is a former Croatian water polo player.
He married Antonia Kojan.
On 3 February 2000 was sentenced in Municipal Court in Croatia to a one year prison sentence.
He was convicted of a serious traffic accident that happened on 6 November 1993 in which his passenger Marijana Matošin was killed.