Wyoming Affidavit Acknowledging Paternity
Official state formParentage and paternityFree downloadLast verified November 10, 2026
Legally establishes paternity under the Wyoming Parentage Act when the parents are not married to each other. It allows the father's name on the birth certificate. It takes effect when filed with Vital Records Services.
Who can use this form
- The mother and the natural father, who are not married to each other
- Both must sign before a notary
- A legal guardian must also sign for a parent under 18
What to send with it
- Affidavit signed by the mother and the father, each before a notary
- Both parents must first receive the notice of rights (printed on the back; toll-free (888) 570-9906)
- If the mother was married within 300 days before the birth: Affidavit Denying Paternity from her husband or ex-husband, or a certified court order
- If the child is 18 or older: Part II, the adult child's consent
Where to send it
- Mail to
- Vital Records Services 2300 Capitol Ave., Hathaway Building Cheyenne, WY 82002
- State fee
- Not provided
- Typical processing
- Not provided
- Form revision
- WDH-VRS-Affidavit-Acknowledging-Paternity-2026
- Source
- Official government page