| Unit Name: | 300th Mechanized Regiment 300 механізований полк |
| Native Name: | 300-й окремий гвардійський Будапештський механізований полк |
| Dates: | 1992–2013 |
| Type: | Mechanized |
| Command Structure: | 13th Army Corps |
| Current Commander: | Lieutenant Colonel Oleksandr Bida[1] |
| Garrison: | Chernivtsi, Chernivtsi Oblast |
| Battles: | Battle of Budapest |
| Battle Honours: | Budapest |
| Identification Symbol Label: | Soviet Guards badge |
| Identification Symbol 2 Label: | Ukrainian Guards badge |
| Identification Symbol 3 Label: | Mechanized branch insignia |
The 300th Guards Mechanized Regiment was a formation of the Ukrainian Ground Forces. The full name of the regiment is the 300th Separate Guards Mechanized Budapest Regiment.[2]
The Regiment was formed as 145th Guards Training Motor-Rifle Budapest Regiment. 145 Guards TMRR was previously 145th Guards Rifle Regiment, part of 66th Guards Motor Rifle Training Division, the former 66th Guards Rifle Division. After October 30, 2000, by the order of the President of Ukraine, the name of the Regiment was changed to 300th Separate Guards Mechanized Budapest Regiment.[2] [3]
The regiment was disbanded on 30 October 2013.[4] The of the 80th Separate Air Assault Brigade was later established on the remains of the regiment.