John Birdsall (1802 – July 22, 1839) was an American lawyer and politician from New York and Texas.
New York State Treasurer Alvah Hunt was Birdsall's brother-in-law.
In 1837, he removed to Houston, then the capital of the independent Republic of Texas, and resumed the practice of law there.
The same year, he was appointed Attorney General of the Republic of Texas.
In November 1838, he was appointed by President Sam Houston as Chief Justice of the Supreme Court of the Republic of Texas, to fill the vacancy caused by the death of James Collinsworth, but the Texas Congress did not confirm the appointment, and instead elected Thomas Jefferson Rusk a few days after Houston left the presidency.