| Division Three championshipWater polo · Il-pajjiż irrappreżentat mhux imsemmi · Men | Sirens ASC (men's water polo)Historical domestic club title | Winners | 1947Division Three championship 1947 | ↗ Soċjetà Mużikali San Pawl / Arthur Saliba; University of Malta repository |
| Division Two championshipWater polo · Il-pajjiż irrappreżentat mhux imsemmi · Men | Sirens ASC (men's water polo)Historical domestic club title | Winners | 1948Division Two championship 1948 | ↗ Soċjetà Mużikali San Pawl / Arthur Saliba; University of Malta repository |
| Division Two championshipWater polo · Il-pajjiż irrappreżentat mhux imsemmi · Men | Sirens ASC (men's water polo)Historical domestic club title | Winners | 1952Division Two championship 1952 | ↗ Soċjetà Mużikali San Pawl / Arthur Saliba; University of Malta repository |
| Division One Reserves LeagueWater polo · Il-pajjiż irrappreżentat mhux imsemmi · Men · Reserves | Sirens ASC (men's water polo)Historical domestic club title | Winners | 1955Division One Reserves League 1955 | ↗ Soċjetà Mużikali San Pawl / Arthur Saliba; University of Malta repository |
| Under 18/19 championshipWater polo · Il-pajjiż irrappreżentat mhux imsemmi · Men · Under 18/19 — source combined category | Sirens ASC (men's water polo)Historical domestic club title | Winners | 1957Under 18/19 championship 1957 | ↗ Soċjetà Mużikali San Pawl / Arthur Saliba; University of Malta repository |
| Division One Reserves LeagueWater polo · Il-pajjiż irrappreżentat mhux imsemmi · Men · Reserves | Sirens ASC (men's water polo)Historical domestic club title | Winners | 1958Division One Reserves League 1958 | ↗ Soċjetà Mużikali San Pawl / Arthur Saliba; University of Malta repository |
| Summer LeagueWater polo · Men · Senior | Sirens ASC (men's water polo)Championship title | Champions | 1959Summer League 1959 | ↗ Aquatic Sports Association of Malta |
| Match vs Sliema — league deciding replayWater polo · Il-pajjiż irrappreżentat mhux imsemmi · Men | Sirens ASC (men's water polo)Historical match result | Won 3–2 | 1959Summer League 1959 | ↗ Aquatic Sports Association of Malta |
| Under 18/19 championshipWater polo · Il-pajjiż irrappreżentat mhux imsemmi · Men · Under 18/19 — source combined category | Sirens ASC (men's water polo)Historical domestic club title | Winners | 1959Under 18/19 championship 1959 | ↗ Soċjetà Mużikali San Pawl / Arthur Saliba; University of Malta repository |
| Division One Reserves LeagueWater polo · Il-pajjiż irrappreżentat mhux imsemmi · Men · Reserves | Sirens ASC (men's water polo)Historical domestic club title | Winners | 1960Division One Reserves League 1960 | ↗ Soċjetà Mużikali San Pawl / Arthur Saliba; University of Malta repository |
| Summer Knock OutWater polo · Men | Sirens ASC (men's water polo)National cup title | Winners | 1962Malta water polo Knock Out 1962 | ↗ Aquatic Sports Association of Malta |
| Division One Reserves LeagueWater polo · Il-pajjiż irrappreżentat mhux imsemmi · Men · Reserves | Sirens ASC (men's water polo)Historical domestic club title | Winners | 1965Division One Reserves League 1965 | ↗ Soċjetà Mużikali San Pawl / Arthur Saliba; University of Malta repository |
| Summer LeagueWater polo · Men · Senior | Sirens ASC (men's water polo)Championship title | Champions | 1967Summer League 1967 | ↗ Aquatic Sports Association of Malta |
| Under 16/17 Knock OutWater polo · Il-pajjiż irrappreżentat mhux imsemmi · Men · Under 16/17 — source combined category | Sirens ASC (men's water polo)Historical domestic club title | Winners | 1968Under 16/17 Knock Out 1968 | ↗ Soċjetà Mużikali San Pawl / Arthur Saliba; University of Malta repository |
| Division Two Reserves LeagueWater polo · Il-pajjiż irrappreżentat mhux imsemmi · Men · Reserves | Sirens ASC (men's water polo)Historical domestic club title | Winners | 1982Division Two Reserves League 1982 | ↗ Soċjetà Mużikali San Pawl / Arthur Saliba; University of Malta repository |
| Division Two championshipWater polo · Il-pajjiż irrappreżentat mhux imsemmi · Men | Sirens ASC (men's water polo)Historical domestic club title | Winners | 1984Division Two championship 1984 | ↗ Soċjetà Mużikali San Pawl / Arthur Saliba; University of Malta repository |
| Under 18/19 championshipWater polo · Il-pajjiż irrappreżentat mhux imsemmi · Men · Under 18/19 — source combined category | Sirens ASC (men's water polo)Historical domestic club title | Winners | 1985Under 18/19 championship 1985 | ↗ Soċjetà Mużikali San Pawl / Arthur Saliba; University of Malta repository |
| Division Two Knock OutWater polo · Il-pajjiż irrappreżentat mhux imsemmi · Men | Sirens ASC (men's water polo)Historical domestic club title | Winners | 1987Division Two Knock Out 1987 | ↗ Soċjetà Mużikali San Pawl / Arthur Saliba; University of Malta repository |
| Under 18/19 championshipWater polo · Il-pajjiż irrappreżentat mhux imsemmi · Men · Under 18/19 — source combined category | Sirens ASC (men's water polo)Historical domestic club title | Winners | 1993Under 18/19 championship 1993 | ↗ Soċjetà Mużikali San Pawl / Arthur Saliba; University of Malta repository |
| First Division Winter LeagueWater polo · Il-pajjiż irrappreżentat mhux imsemmi · Men | Sirens ASC (men's water polo)Historical domestic club title | Winners | 1997First Division Winter League 1997 | ↗ Soċjetà Mużikali San Pawl / Arthur Saliba; University of Malta repository |
| Under 18/19 championshipWater polo · Il-pajjiż irrappreżentat mhux imsemmi · Men · Under 18/19 — source combined category | Sirens ASC (men's water polo)Historical domestic club title | Winners | 1997Under 18/19 championship 1997 | ↗ Soċjetà Mużikali San Pawl / Arthur Saliba; University of Malta repository |
| GhKS CupWater polo · Il-pajjiż irrappreżentat mhux imsemmi · Men | Sirens ASC (men's water polo)Historical domestic club title | Winners | 1999GhKS Cup 1999 | ↗ Soċjetà Mużikali San Pawl / Arthur Saliba; University of Malta repository |
| Summer Knock OutWater polo · Men | Sirens ASC (men's water polo)Historical national club title | Champions | 1999Malta Summer Knock Out 1999 | ↗ Aquatic Sports Association of Malta |
| First Division LeagueWater polo · Men · Senior | Sirens ASC (men's water polo)Championship title | Champions | 2000First Division League 2000 | ↗ Aquatic Sports Association of Malta |
| First Division LeagueWater polo · Men · Senior | Sirens ASC (men's water polo)Championship title | Champions | 2005First Division League 2005 | ↗ Aquatic Sports Association of Malta |