Paul Alan Vojta (born September 30, 1957) is an American mathematician, known for his work in number theory on Diophantine geometry and Diophantine approximation.

In formulating Vojta's conjecture, he pointed out the possible existence of parallels between the Nevanlinna theory of complex analysis, and diophantine analysis in the circle of ideas around the Mordell conjecture and abc conjecture.

This suggested the importance of the integer solutions (affine space) aspect of diophantine equations.

[citation needed] Vojta wrote the .dvi-previewer xdvi.

[4] He currently is a professor in the Department of Mathematics at the University of California, Berkeley.