The eight received the top marks at the school.
A total of 72 CBS Leaving Cert students have now benefited from the JP McManus Scholarship Award scheme.
Mr McManus, a former CBS pupil, presented the awards at a function in the Dunraven Arms Hotel, Adare last night.
Each is worth €4,500 for each year a student spends studying for a primary third-level degree.
When the JP McManus Scholarship Awards were initiated nine years ago, the recipients received £3,000 each year.
This was converted to €4,000 when the currency changed and the amount has now been increased to €4,500.
This year’s scholarship winners are Niall Carroll, Croom; Brendan Clifford, Bruff; Paul Collins, Killale, Limerick City; Adrian Dawson, Crecora; James Leahy, Patrickswell; Patrick Lonergan, Castletroy; Eoghan O’Sullivan, Ballysimon; and Andrew Ryan, Caherelly.
Congratulating the winners, Mr McManus said he felt happy to have played a small part in the success of the former winners over the years.
“We are now in our ninth year of the scholarship awards and to date, 34 winners have successfully graduated from third-level education,” he said.
“Every year, the standard of education in Ireland seems to be rising at a considerable rate and there appears to be greater pressure on students and teachers to raise their standards.”
Limerick Mayor Cllr Diarmuid Scully said the JP McManus annual scholarship awards open the door to a wider world and a brighter future for those who receive them.
He said: “JP McManus is Limerick’s leading philanthropist, but of all the gifts that he has made, it is by belief that the funding in perpetuity of these scholarships will have the greatest long-term effect.”
In a poignant address, the principal of CBS, Noel Earlie recalled that one of the 1999 JP McManus Scholarship Award winners, Eamonn Dillon, was killed in a traffic accident in Chicago in June while working with Analog Devices.
Mr Earlie said Eamonn had graduated from UL with an honours degree in electronic engineering in 2003 and was pursuing a highly successful career at the time of his tragic death.
Mr Earlie said the school was extremely proud of its students.
“The awards ceremony this evening brings its just rewards to eight outstanding students of Coláiste Mhichil,” he said.
Minister for Defence, Willie O’Dea, TD and the Cathaoirleach of Limerick County Council, Cllr Brigid Teefy were among the guests at the scholarships award ceremony.