Exhibit 21
SUBSIDIARIES OF MEIRAGTX HOLDINGS PLC
| Legal Name of Subsidiary | 
 | Jurisdiction of Organization | 
| BRI-Alzan, Inc. |  | Delaware | 
| MeiraGTx B.V. |  | Netherlands | 
| MeiraGTx Netherlands B.V. |  | Netherlands | 
| MeiraGTx Limited |  | England and Wales | 
| MeiraGTx, LLC |  | Delaware | 
| MeiraGTx UK Limited |  | England and Wales | 
| MeiraGTx UK II Limited |  | England and Wales | 
| MeiraGTx Ireland DAC |  | Ireland | 
| MeiraGTx Neurosciences, Inc. |  | Delaware | 
| MeiraGTx Bio Inc. |  | Delaware | 
| MeiraGTx Belgium |  | Belgium | 
| MeiraGTx Therapeutics, Inc. |  | Delaware | 
| MeiraGTx Neuro I, LLC |  | Delaware | 
| MeiraGTx Neuro II, LLC |  | Delaware | 
| MeiraGTx Manufacturing Limited |  | England and Wales | 
| MeiraGTx Ocular UK Limited |  | England and Wales | 
| MeiraGTx Gene Regulation Limited |  | England and Wales | 
| MeiraGTx Neuro UK Limited |  | England and Wales |