| Aleksander Rajchman | |
|---|---|
| Born | 13 November 1890 Warsaw, Poland | 
| Died | 1940 Sachsenhausen concentration camp | 
| Fields | Mathematician | 
| Alma mater | University of Warsaw | 
| Doctoral advisor | Hugo Steinhaus | 
| Doctoral students | Zygmunt Zalcwasser Antoni Zygmund | 
| Known for | Rajchman measure | 
Aleksander Rajchman (13 November 1890 – July or August 1940) was a Polish mathematician who introduced Rajchman measures.
He was the first cousin of Ludwik Hirszfeld.