Sacha Baron Cohen and Isla Fisher – 18 Years
While Sacha Baron Cohen and Isla Fisher might seem like an unconventional couple due to their significant height difference, they’ve been together for nearly 20 years. They first met at a party in Sydney, Australia, 2002 and started dating immediately. The couple got engaged in 2004.

After Fisher converted to Judaism, Sacha and Isla officially tied the knot in a small, intimate ceremony; according to Isla, celebrating a beautiful ritual with family and friends was very important to her. Today, the couple is the proud parents of three children.