What is my dad's stepsister to me?
Your dad's stepsister is your step-aunt. She became your father's step-sibling when one of his parents remarried, so she fills an aunt's seat on your tree without sharing blood with either of you. The label is informal — English never made it official — but everyone understands it.
Relationship
Step-aunt
English has no single formal word for this relative — “step-aunt” is the label genealogists use.
- You
- Your dad
- His stepsister
From the other side, you are their step-niece or step-nephew.
Step relationships run through a remarriage, not a shared ancestor, so the ancestor chart can't draw them.
The calculator below works out blood relationships through a shared ancestor — use it to explore the rest of your tree.
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This relationship sits outside the shared-ancestor model, so the card above carries the answer and the calculator opens in its default state. Work out any blood relationship with it, or open the full relationship calculator.
FAQs
What would my dad's stepsister be to me?+
Your step-aunt — informally; English has no official word for a parent's step-sibling.
Are my dad's stepsister's children related to me?+
Only by the blended family — they'd informally be your step-cousins, with no blood link.
Does the calculator store my family details?+
No — it runs entirely in your browser. Nothing you enter is uploaded or saved on our servers.
Start with one relative and see what comes back.
Add what you remember and AncestorIQ searches for the rest. Free to build your tree for as long as you like.
No credit card needed. Your tree stays yours.
