National Treatment Purchase Fund (NTPF) statistics show that Galway University Hospital has the biggest inpatient, day case and outpatient waiting lists in the country, with over 50,000 people waiting.
Galway's outpatient waiting list was almost 40,000 at the end of August and the inpatient and day case list was 10,000.
Overall national hospital waiting lists have reached a record high, with more than 718,000 patients at the end of August.
The figures represent an overall rise of nearly 14,000 on the July figures, despite an intensive validation process by the HSE.
The total August waiting list figure of 718,000 excludes 12,000 patients "suspended" from the overall list for a variety of reasons, including not being clinically able for treatment at this time, or for other reasons.
Overall, total inpatient and day case treatment lists are down.
However, the outpatient waiting list for people to be seen by a consultant, at a clinic, for the first time for assessment is up by nearly 3,000.
There are now nine different waiting list figures produced by the NTPF, which have to be calculated and compared with previous months.
More than 48,000 children were on waiting lists to be treated, or seen by a doctor at the end of last month.
Over 63,000 were waiting on an appointment with an orthopaedic consultant.
Tens of thousands of people are also looking for appointments in relation to ophthalmology, urology, gynaecology, cardiology and neurology.