Oldest first-time grandfather
- Who
- Charles Smith
- What
- 91:209 year(s):day(s)
- Where
- Australia (Brisbane)
- When
- 29 August 2025
The oldest first-time grandfather is Charles Smith (Australia, b. 1 February 1934), at the age of 91 years 209 days, achieved in Brisbane, Australia, on 29 August 2025.
Charles Smith became the oldest first-time grandfather to Isla Smith on 29 August 2025.