Erwin Keller (April 8, 1905 – 1971) was a field hockey player from Germany, who won the silver medal for his native country at the 1936 Summer Olympics in Berlin. His son Carsten was also a top hockey player, and captured the gold medal at the 1972 Summer Olympics.
His son Carsten competed in three Olympics and won the gold medal in 1972 with the German team.
Three of Carsten's children also played hockey, two of them at the international level, and all were strikers. Andreas became Olympic champion in 1992 (Barcelona), after winning silver at the two previous Olympics in Los Angeles (1984) and Seoul (1988). Natascha competed in three Olympics, winning gold at the 2004 Summer Olympics in Athens. At the 2008 Summer Olympics his grandson Florian won the gold medal for Germany.