Selina Rutz-Büchel (née Büchel; born 26 July 1991) is a Swiss middle-distance runner who competes in the 800 metres.

At the 2016 European Athletics Championships held in Amsterdam, she narrowly missed a medal and finished fourth, setting a season best of 2:00.30 in the semis.

[2] Büchel ran a personal best of 2:05.95 minutes in 2010, but did not get past the semi-final stage at the 2010 World Junior Championships in Athletics.

She repeated as Swiss indoor champion in 2012, but missed part of the outdoor season due to injury.

[2] She gave a surprise performance at the 2014 IAAF World Indoor Championships, improving to 2:00.93 minutes to win her semi-final before coming fourth in the 800 m final.