Reisen may refer to:
- Rydzyna, Poland
- A6M Reisen, the Japanese fighter aircraft extensively used in World War II
- Helmut Reisen (1950- ), German economist
- Zalman Reisen (1887-1940), Russian lexicographer of Yiddish
- Reisen Udongein Inaba, a fictional character of the Touhou Project scrolling shooters