| Lahanan | |
| States: | Malaysia |
| Region: | Sarawak |
| Speakers: | 350 |
| Date: | 1981 |
| Ref: | e18 |
| Familycolor: | Austronesian |
| Fam2: | Malayo-Polynesian |
| Fam4: | Melanau–Kajang |
| Fam5: | Kajang |
| Iso3: | lhn |
| Glotto: | laha1253 |
| Glottorefname: | Lahanan |
Lahanan (Lanun) is a Kajang language of Sarawak, Malaysia.