Kraljévi astronóm (angleško Astronomer Royal) je bil izvirno naziv za predstojnika Kraljevega observatorija Greenwich, od leta 1972 pa je preprosto častni naziv.
Prvi kraljevi astronom je postal John Flamsteed 4. marca 1675, ko so ustanovili Kraljevi observatorij v Greenwichu. Celoten seznam kraljevih astronomov je naveden v spodnji preglednici.
| kraljevi astronom | od | do |
|---|---|---|
| Flamesteed, John John Flamsteed | 1675 | 1719 |
| Halley, Edmond Edmond Halley | 1720 | 1742 |
| Bradley, James James Bradley | 1742 | 1762 |
| Bliss, Nathaniel Nathaniel Bliss | 1762 | 1764 |
| Maskelyne, Nevil Nevil Maskelyne | 1765 | 1811 |
| Pond, John John Pond | 1811 | 1835 |
| Airy, George Biddell George Biddell Airy | 1835 | 1881 |
| Christie, William Henry Mahoney William Henry Mahoney Christie | 1881 | 1910 |
| Dyson, Frabk Watson Frank Watson Dyson | 1910 | 1933 |
| Jones, Harold Spencer Harold Spencer Jones | 1933 | 1955 |
| Woolley, Richard van der Riet Richard van der Riet Woolley | 1956 | 1971 |
| Ryle, Martin Martin Ryle | 1972 | 1982 |
| Graham-Smith, Francis Francis Graham-Smith | 1982 | 1990 |
| Wolfendale, Arnold Arnold Wolfendale | 1991 | 1995 |
| Rees, Martin John Martin John Rees | 1995 | 9999 |
Seznam predstojnikov Kraljevega observatorija od leta 1972:
| Eleanor Margaret Peachey Burbidge | 1972 - 1973 |
| Alan Hunter | 1973 - |