• pttern,
• petersburgh,
• perterson,
• perdson,
• potassiun,
• peerson,
• petson,
• petsokey,
• peterson,
• posteason,
• percetn,
• petersberg,
• jeperdising,
• pedestian,
• petersons,
• ptteren,
• pateren,
• citesen,
• potossin,
• pattersn,
• paternes,
• petersbury,
• leiderhosen,
• petesle,
• citerzen,
• petersbourg,
• perperson,
• petterson,
• prettysoon,
• patosin,
• percen,
• pedesrian,
• partisen,
• pitosin,
• pereson,
• cittersan,
• pertersburg,
• petereson,
• peterosn,
• persen,
• pettern,
• hypertesnion,
• utterson,
• leaderhousen,
• peticion,
• pertson,
• pererson

Petersen is a Danish surname of Danish, Norwegian and Swedish origin. It was historically one of the most common surnames in Denmark, especially in the mid-20th century. It is most common in the area of Copenhagen. The word Petersen means "son of Peter". It is equivalent to the English name Peterson. The surname may also be indicative of someone from the city of Petersen in Sjælland, Denmark.

Petersen is a popular surname among Danish Americans, particularly in the United States. It is estimated that there are more than 350,000 bearers of the surname in the US.