| Ndandu Kasongo | |
| Fullname: | Isaac Ngandu Kasongo |
| Birth Date: | 6 December 1979 |
| Birth Place: | Kinshasa, Zaire |
| Height: | 1.79 m |
| Position: | Midfielder |
| Years1: | 1997–2002 |
| Clubs1: | SC Cilu |
| Years2: | 2003–2012 |
| Clubs2: | TP Mazembe |
| Years3: | 2013–2015 |
| Clubs3: | CS Don Bosco |
| Nationalyears1: | 2004–2011 |
| Nationalteam1: | DR Congo |
| Nationalcaps1: | 14 |
| Nationalgoals1: | 1 |
Isaac Ngandu Kasongo (born 6 December 1979 in Kinshasa) is a retired Congolese football player, who played most of his career for TP Mazembe.
Ngandu was a member of the Congolese 2006 African Nations Cup team, who progressed to the quarter finals, where they were eliminated by Egypt, who eventually won the tournament. He scored a goal in the 2009 FIFA Club World Cup.