| Olympic medal record | ||
|---|---|---|
| Men's Rowing | ||
| Silver | 1900 Paris | coxed fours B |
Gerhard Oswald "Geert" Lotsij (January 13, 1878 in Dordrecht – June 29, 1959 in Hilversum) was a Dutch rower who competed in the 1900 Summer Olympics.
He was part of the Dutch boat Minerva Amsterdam, which won the silver medal in the coxed fours final B.
He is the older brother of Paul Lotsij.