Journal of Approximation Theory

{{Infobox Journal

| title = Journal of Approximation Theory

| cover = Journal of Approximation Theory.gif

| discipline = Approximation theory

| abbreviation = J. Approx. Theory

| editor = Paul Nevai and Amos Ron

| impact = 1.091

| impact-year = 2020

| publisher = Elsevier

| country = U.S.

| ISSN = 0021-9045

| CODEN = JAXTAZ

| history = 1968 to present

| website = http://www.journals.elsevier.com/journal-of-approximation-theory

}}

The Journal of Approximation Theory is "devoted to advances in pure and applied approximation theory and related areas."{{cite web | url = http://www.elsevier.com/wps/find/journaldescription.cws_home/622853/description#description | title = Journal of Approximation Theory - Elsevier | accessdate = 2007-04-30}}