There is no data about how many are living in interfaith families. Yet, one thing is certain: Their number is growing due to globalization and our changing society – even if bureaucratic hurdles for mixed faith marriages are high and families and religious communities often react with skepticism. Indeed, different concepts of living in the confined space of a family can mean a big challenge. Do they lead to a dilution of one’s own religious identity? Don’t interfaith families tend to take a distance to their religious communities or the communities to them? Or how can an interfaith family succeed in mutually giving space to everybody to live his or her religious life? Can there be a satisfying or even enriching way of negotiating? Interfaith families live in a small context what is needed in larger ones, like in our religious communities and even in our society. Can we learn from the experiences of those interfaith families for our relation to the totally other beside us?