Kerman Lejarraga Arana (born 19 February 1992) is a Spanish professional boxer. He has held the European welterweight and super-welterweight titles.
Lejarraga won the vacant European welterweight title by stopping Bradley Skeete in the second round of their fight at Bilbao Arena in Bilbao, Spain, on 28 April 2018.
He successfully defended the title by knocking out Frankie Gavin in the fourth round at Bilbao Exhibition Centre in Baracaldo, Spain, on 17 November 2018.
Lejarraga lost the title to David Avanesyan back at Bilbao Arena on 30 March 2019, going down to a ninth round stoppage defeat. A rematch was held at the same venue on 28 September 2019, with Avanesyan winning by first round knockout.
He defeated Tyrone Nurse by unanimous decision in a 10-round contest at Plaza de Toros de Puerto Banus in Marbella, Spain, on 8 August 2020.
On 11 September 2021, Lejarraga fought Dylan Charrat fur the vacant European super-welterweight title at Pabellón de la Vall d'Hebron in Barcelona, Spain. The bout was stopped in the 10th round due to an eye injury sustained by Lejarraga in an accidental clash of heads. He won by majority technical decision with the judges' scorecards reading 96-94, 96-94, 95-95 in favor of Lejarraga.
Lejarraga beat Jack Flatley by knockout in the ninth round at the Bilbao Arena on 3 December 2021 to retain his title.
In his next bout, Lejarraga fought JJ Metcalf for the vacant WBA super-welterweight title at Bilbao Arena, losing via unanimous decision.