| Issuer | Turkey |
| Year | 1966-1983 |
| Type | Standard banknote |
| Value | 20 Lira (20 TRL) |
| Currency | Old lira (1923-2005) |
| Composition | Paper |
| Size | 143 × 66 mm |
| Shape | Rectangular |
| Printer | Türkiye Cumhuriyet Merkez Bankası Banknot Matbaası, Ankara, Turkey (1955-date) |
| No. printed | |
| Designer(s) | |
| Engraver(s) | |
| In circulation to | 21 August 1997 |
| Reference(s) | P#181 |
| Obverse description | A portrait of President Mustafa Kemal Atatürk |
| Reverse description | Anıtkabir, Mausoleum of Mustafa Kemal Atatürk, and Turkish Men Sculpture at the Road of Lions entry in Ankara. |
| Signature(s) | |
| Protection type | Watermark |
| Protection description | Effigy of President Mustafa Kemal Atatürk, facing towards the middle of the note. |
| Obverse lettering | TÜRKİYE CUMHURİYET
MERKEZ BANKI
YİRMİ
TÜRK LİRASI (Translation: Central Bank of the Turkish Republic, Twenty Turkish Lira) |
| Reverse lettering | TÜRKİYE CUMHURİYET MERKEZ BANKI
YİRMİ TÜRK LİRASI (Translation: Central Bank of the Turkish Republic, Twenty Turkish Lira) |
| Variants | |
| Catalog ID | 9969421000 |
| Comments |
