| Sacred Heart Roman Catholic Church Ystradgynlais | |||||
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| Diocese of Cardiff | |
| Anthony Cox, OSB | 1910-1923 (Served from Clydach) |
| Cyprian Alston, OSB | 1924-1930 (Served from Clydach) |
| Father P.F.Fitzgerald | 1931 (Served from Clydach) |
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Diocese of Menevia |
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| Father P.O'Rourke | 1932-1940 (Served from Ammanford) |
| Father Oswald Murphy | 1941-1944 (Served from Ammanford) |
| Paul Keyte, SDS | 1944-1947 |
| Eunan O'Gorman SDS | 1948-1955 |
| Gregory Brightling, SDS | 1956-1971 |
| Wilfred Skoyles, SDS | 1971-1976 |
| Victor Arthur, SDS | 1977-1983 |
 Richard Sullivan, SDS 1983-1985 |
Awaiting Photograph Danny Mullan, SDS 1985-1987 |
 Augustine Caulfield, SDS 1987-2001 |
 Henry Nevin, SDS 2001-2003 |
 Bill Harrison SDS 2003-2006 |
 Fr. Thomas Kochalumchuvattil MSFS 2006-2007 |
 Fr. Selva Raj Mallavarappu SDS |
Awaiting Photograph Fr Teyrnin Williams |
 Fr. Keith Evans |
Current : Henry Nevin, SDS |