| Frank Jaenicke | |
| Birthname: | Frank Eric Jaenicke |
| Birth Date: | 1892 8, df=yes |
| Birth Place: | Germany |
| Death Place: | Luseland, Saskatchewan, Canada |
| Spouse: | 1. deceased 2. Winnifred E. Evans m. 3 August 1946[1] |
| Riding: | Kindersley |
| Predecessor: | Charles Albert Henderson |
| Successor: | Fred Larson |
| Term Start: | June 1945 |
| Term End: | June 1949 |
| Profession: | barrister |
| Party: | Co-operative Commonwealth Federation |
Frank Eric Jaenicke (23 August 1892 – 2 February 1951) was a Co-operative Commonwealth Federation member of the House of Commons of Canada. He was born in Germany and became a barrister by career.
Jaenicke was an unsuccessful 1938 provincial election candidate for the Saskatchewan Co-operative Commonwealth Federation in the constituency of Kerrobert-Kindersley.[2]
He was first elected to Parliament from the Kindersley riding in the 1945 general election. Jaenicke was defeated in the 1949 election by Fred Larson of the Liberal party.