International Journal of Foundations of Computer Science

{{Infobox Journal

| title = International Journal of Foundations of Computer Science

| cover =

| former_name =

| abbreviation = Int. J. Found. Comput. Sci.

| mathscinet = Internat. J. Found. Comput. Sci.

| discipline = Computer science

| language =

| editor = Oscar Ibarra

| publisher = World Scientific

| country = Singapore

| history = 1990–present

| frequency =

| openaccess = no

| license =

| impact =

| impact-year =

| ISSN = 0129-0541

| eISSN = 1793-6373

| CODEN =

| JSTOR =

| LCCN =

| OCLC =

| website = http://www.worldscinet.com/ijfcs/ijfcs.shtml

| link1 =

| link1-name =

| link2 =

| link2-name =

}}

The International Journal of Foundations of Computer Science is a computer science journal published by World Scientific. It was founded in 1990, covering the field of theoretical computer science, from algebraic theory and algorithms, to quantum computing and wireless networks. Since 1997, the editor-in-chief has been Oscar Ibarra of the Department of Computer Science, University of California.

According to the Journal Citation Reports, the journal has a 2020 impact factor of 0.416.