In-law (disambiguation)
In-law may refer to:
- Affinity (law), kinship by marriage, such as a
- Mother-in-law
- Father-in-law
- Brother-in-law
- Sister-in-law
- Daughter-in-law
- Son-in-law
- Cousin-in-law
- Uncle-in-law
- Aunt-in-law
- Nephew-in-law
- Niece-in-law
- Co-mother-in-law (the relationship between women whose children are married to each other)
- Co-father-in-law
- Co-brother-in-law (the relationship between men who are married to sisters)
- Co-sister-in-law
- Co-wife (another wife of one's husband)
- Co-husband
- In-law apartment, a type of secondary residence
- In-Laws, an American situation comedy that aired on NBC
- The In-Laws, a 1979 film
- The In-Laws, a 2003 film