Suva Grammar Ruggers Suva Grammar has won the coveted prize of school boys' rugby, the
Deans Trophy on one occasion in 2001 and played to a draw with
Ratu Kadavulevu School in 2005. They were finalists in 1992, 1993, 2006 and 2022.
Suva Grammar Athletics Reigning Coca-Cola Games champions in the boys division of the Fiji Secondary School's athletics competitions from 2007–2011, having successfully defended their title for 5 straight years before losing the reigns to rival competitors
Marist Brothers High School in 2012. Suva Grammar School won another title (boys division) in 2022. SGS has now won the Coke Games Boys title 7 times. Suva Grammar has also won the Coke Games Girls Division 4 times.
Lions Cheerleaders Suva Grammar is also noted for their renowned pom pom girls, who have been a fixture at the Annual Coca-Cola Games since 2002, revamping the 'Fiji style' of cheerleading in 2009 before introducing co-ed cheerleading at the 2010 Coca-Cola Games, a testament to the Grammarian trailblazing spirit of innovation and ingenuity in the lead-up to the school's Golden Jubilee celebrations later in July. Grammar's influence in this aspect of secondary school life remains prevalent today with 2017 Coke Games Girls division champions
ACS, revamping their own iconic cheerleading squad and other schools starting cheerleading squads as well such as Ballantine Memorial School, western prominent schools
Saint Thomas High School, 2015 & 2017 Coke Games Boys division champions
Natabua High School and 2014–2016 Coke Games Girls division champions Jasper Williams High School, and even Saint John's College Cawaci from Ovalau.
Suva Grammar Ballers Suva Grammar also creates an opportunity for students to play basketball participating in zone and nationals. They won the title in 2022 of the Suva Zone under 19 boys beating schools including
Ratu Kadavulevu School,
Yat Sen Secondary School,
International School Suva, and their long-time rivals
Marist Brothers High School.
Suva Grammar Cricket Suva Grammar’s cricketers are formidable coming third in the 2024 Cricket Fiji U19 Boys Nationals.
Suva Grammar Netters Lioness Netters clean swept the girls division in 2023 winning the all the grades. While they held the Mens title in 2022, the Lions lost it to
Yat Sen Secondary School in the following year. Suva Grammar now currently hold only the Under 15 title. ==Notable alumni==