If I am filing married filing separate, can my husband file head of household or is he required to also file married filing separate?

[melissajwalsh]

Can one person file separate and the other file head of household?

[DanielV01]

It depends.  If he lived separately from you for the remaining six months of the year and has a qualifying dependent, for whom he provided at least half of the household support, then, yes, he may claim head of household.  (You also would qualify for that same status if you meet those conditions).

If not, then your options are married filing joint or married filing separtate.  Here are some FAQ's that cover these topics more in depth:  

Can he claim Head of Household:   https://ttlc.intuit.com/replies/4206137

Qualifying Dependent for Head of Household:   https://ttlc.intuit.com/replies/4791157

Married Filing Separate or Joint:  https://ttlc.intuit.com/replies/3288477