Last name Baetjer (Baetjer 
) , worldwide, is a rare family name. The cognomen Baetjer is characteristic of Denmark, where it is a rare surname, Germany, and Norway, where it is a very rare surname. Measured by absolute frequency, it most frequently occurs in Germany, the United States, and Denmark.
| VARIANT | COUNTRY |
|---|---|
| Baetjer | Germany, Norway, United Kingdom, United States, Denmark |
|
frederick henry baetjer American radiologist, US (b. 1874) |
|
| anna baetjer American physiologist (1899-1984), US (b. 1899) |
|
|
| katharine baetjer art historian (b. 1945) |
|