| Birth Name: | Kasiano Lealamanu'a |
| Birth Date: | 1976 12, df=yes |
| Birth Place: | Wellington, New Zealand |
| Height: | 1.75m (05.74feet) |
| Weight: | 1150NaN0 |
| School: | St Patrick's College |
| Position: | Prop |
| Years1: | 1998–2003 |
| Years2: | 2004 |
| Years3: | 2004–2007 |
| Years4: | 2007–2009 |
| Years5: | 2009–2010 |
| Years6: | 2010–2011 |
| Clubs1: | Wellington |
| Clubs2: | Coventry |
| Clubs3: | Biarritz |
| Clubs4: | Dax |
| Clubs5: | Saracens |
| Clubs6: | Hawke's Bay |
| Apps1: | 27 |
| Apps2: | 9 |
| Apps3: | 62 |
| Apps4: | 44 |
| Apps5: | 9 |
| Apps6: | 11 |
| Points2: | 5 |
| Points3: | 10 |
| Points4: | 0 |
| Points5: | 0 |
| Points6: | 0 |
| Repyears1: | 2000-2007 |
| Repyears2: | 2008 |
| Repteam1: | Samoa |
| Repteam2: | Pacific Islanders |
| Repcaps1: | 30 |
| Repcaps2: | 1 |
| Reppoints1: | 5 |
| Reppoints2: | 0 |
Kasiano "Kas" Lealamanua (born 15 December 1976)[1] is a Samoan rugby union player. Lealamanua plays Prop for Saracens in the Guinness Premiership. Having previously played for Biarritz and US Dax for a number of seasons in the Top 14.Lealamanua has represented Samoa a number of times, at both the 2003 and 2007 world cups. Lealamanua has also represented the Pacific Islanders 2008.