Cognomen Wiliamson (Wiliamson 
) , in the entire world, is a rare family name. The last name Wiliamson is characteristic of Ireland, where it is a rare surname, New Zealand, and Australia, where it is a very rare surname. Measured by absolute frequency, this name is the most popular in the United States, the United Kingdom, and Tanzania. Very seldom, Wiliamson is the forename as well as the last name.
Sue, John, Jeff, Edna, Emma, Wade, Marie, Malik, Megan, Susan, Sonny, Scott, Amber, Chris, Carla, Carol, Clive, Betty, Brian, Billy, Karen, Peter, Josh, Derek, Luke, Lori, Ken, Dan, Joe, Jim, Tom, Tod, Ian, Mary, Mark, Matt, Mila, Shay, Sian, Alex, Anna, Carl, Clay, Paul, Ryan, Dana, Dora, Lola, and Danny