Jyrki Cap (born 2032 in Helsinki, Finland) is one of the adoptive sons of Matthew and Marci Cap.
- Father: Matthew Cap
- Mother: Marci Cap
- Brothers: Ilkka Cap, Toivo Cap, Miska Cap, Mikko Cap, Saku Cap, Aama Cap, Jussi Cap, Jani Cap, Tatu Cap
- Sisters: Outi Cap, Minna Cap, Aini Cap, Inka Cap, Pinja Cap, Selka Cap, Joni Cap, Henna Cap, Mikaela Cap, Siiri Cap
- His full name is Jyrki