RTÉjr
| Country | Ireland | 
|---|---|
| Broadcast area | Republic of Ireland Northern Ireland | 
| Headquarters | Donnybrook, Dublin | 
| Programming | |
| Language(s) | English Irish | 
| Picture format | 576i 16:9 (SDTV) | 
| Ownership | |
| Owner | Raidió Teilifís Éireann | 
| Sister channels | RTÉ One RTÉ2 RTÉ News TRTÉ | 
| History | |
| Launched | 20 September 2010 (programming block) 27 May 2011 (simulcast channel) 15 April 2013 (stand-alone channel) | 
| Links | |
| Website | rte | 
| Availability | |
| Terrestrial | |
| See separate section | |
| Streaming media | |
| See separate section | |
RTÉjr is an Irish free-to-air children's television channel operated by state-owned broadcaster RTÉ. The channel mainly targets a demographic of 2- to 7-year-olds, but some cartoons for older children also air. The channel is part of RTÉ KIDS.
The channel broadcasts 12 hours of programming each day between 7:00 am and 7:00 pm. It is supported by radio station RTÉjr Radio and additional services available on-demand, on mobile and online. The channel operates alongside its sister strand TRTÉ on RTÉ2.