- For the primary universe counterpart, see Elizabeth Weir.
| Elizabeth Weir | |
 Elizabeth Weir in 2391 | |
| Full name: | Elizabeth Weir |
| Species: | Terran |
| Gender: | Female |
| Homeworld: | Earth |
| Birthplace: | Earth |
| Born: | October 14, 2332 |
| Affiliation: | Mikkei Combine |
| Family | |
| Mother: | Katherine Weir |
| Father: | Unnamed father |
| Marital Status: | Single |
| Career | |
| Occupation: | Mikkei Combine officer |
| Assignment: | commanding officer, MCS Murakami |
| Rank: | Commander |
| Insignia: | 
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In the mirror universe, Elizabeth Weir is a female Terran who is a Commander of the Mikkei Combine. Her ship is the MCS Murakami. Commander Elizabeth Weir is one of the Combine's leaders. (Star Trek: Intrepid episode: "The Mirror Raza conflict")