Prime Minister Fayez al-Sarraj signed a military cooperation deal with Erdogan last year that turned the tide in the GNA's favor in a conflict against eastern Libyan forces under Khalifa Haftar's Libyan National Army (LNA).
After a meeting between the men and their top deputies in Istanbul, the Presidency said Turkey will continue to stand in "full solidarity" with the GNA, aims to strengthen ties and remains ready to provide all kinds of support.
Last month Erdogan said Turkey was upset by ally Sarraj's decision to step down. Serraj's government declared a ceasefire on Aug. 21 in the north African country's conflict.
The Ankara-Tripoli military deal was signed alongside a maritime demarcation agreement that emboldened Turkey to ramp up hydrocarbon exploration in the Eastern Mediterranean, prompting an ongoing clash with Greece and Cyprus over territorial rights.