Barry C O'Brien
- Category : 1927-births
- Type : GE
- Profile : 2/4 - Hermit / Opportunist
- Definition : Split - Small (1,20,35)
- Incarnation Cross : RAX Explanation 2
American accountant and CEO in charge of Iowa-Illinois Gas and Electric, a utilities company. O'Brien was formerly employed with Arthur Anderson as an accountant and he has a BS in Commerce and Accounting.