As of June 2026, the richest person in Ireland is John Collison with an estimated net worth of $17.5B (Payment software). Ireland has 13 billionaire(s) on Forbes' Real-Time Billionaires list; the full ranking is below and updates automatically.
Key takeaways
- Richest in Ireland: John Collison — $17.5B.
- Ireland has 13 Forbes billionaire(s), worth $71.0B combined.
- Source: Forbes Real-Time Billionaires, auto-updated June 2026.
Top 13 Richest People in Ireland 2026 — full list
| # | Name | Net worth | Source |
|---|---|---|---|
| 1 | John Collison | $17.5B | Payment software |
| 2 | Patrick Collison | $17.5B | Payment software |
| 3 | John Grayken | $7.5B | Private equity |
| 4 | Shapoor Mistry | $5.4B | Diversified |
| 5 | John Dorrance III | $3.2B | Campbell Soup |
| 6 | Denis O'Brien | $3.1B | Telecom |
| 7 | Eugene Murtagh | $2.8B | Building materials |
| 8 | Firoz Mistry | $2.7B | Diversified |
| 9 | Zahan Mistry | $2.7B | Diversified |
| 10 | Dermot Desmond | $2.3B | Finance |
| 11 | Jim Thompson & family | $2.2B | Logistics |
| 12 | John Armitage | $2.2B | Hedge funds |
| 13 | Philip O'Doherty | $1.9B | Information technology |
Source: Forbes Real-Time Billionaires — auto-updated June 2026. Net worth changes daily; verify before citing.
How this ranking works
This list shows every Ireland citizen on Forbes' Real-Time Billionaires feed, ranked by net worth. Forbes re-estimates each fortune as markets move; private-company stakes are estimates, so figures vary by day. Last updated June 2026.
Frequently asked questions
Who is the richest person in Ireland?
John Collison — $17.5B (Forbes, June 2026).
How many billionaires does Ireland have?
13 on Forbes' current real-time list.
