Can you marry a non Catholic in the Catholic Church?

It is possible for a person who is a non-Catholic Christian to marry in the Catholic Church but you will need to seek a dispensation or permission (to enter a mixed marriage) from the local bishop or other appropriate religious figure within the Church. You may also need to attend a marriage preparation course and other requirements, depending on the Church you’re getting married at. This is known as an interfaith marriage when it’s with another Christian. Things get more complicated with non-Christian religions and atheists though, in which case it is best to talk to your priest about getting a "dispensation from disparity of cult."