Computer Science & Information Systems in Thailand: All 5 Ranked Universities, QS 2026 Data

Thailand has exactly 5 universities ranked in the QS World University Rankings by Subject 2026 for Computer Science & Information Systems. The country's best entry is Chulalongkorn University, which sits in the 351–400 band. No Thai institution appears anywhere in the top 300 of this subject worldwide.

That is the full picture in one sentence: Thailand fields a small but present cohort in this discipline, with a clear single leader and a long tail behind it. For a reader who has already fixed on Thailand as a destination and is now weighing depth across subjects, the message is that Computer Science & Information Systems is not the country's strongest area—but it is not absent either.

Five institutions, one clear leader

The QS 2026 subject ranking for Computer Science & Information Systems covers 850 institutions across 79 countries. Thailand's 5 ranked universities place it well outside the global leaders. The United States alone has 106 ranked institutions, the United Kingdom has 59, China (Mainland) has 57, and India has 44. Thailand's count of 5 places it in the same order of magnitude as smaller European systems—Italy has 26, Spain has 24—but far behind the top tier.

Country/Region	Ranked Institutions
United States of America	106
United Kingdom	59
China (Mainland)	57
India	44
Germany	33
France	31
Italy	26
Canada	25
Australia	24
Spain	24

The table above shows how Thailand compares with the ten countries that have the most ranked institutions in this subject. Thailand does not appear on that list; its 5 ranked institutions put it well down the country leaderboard. For a student choosing a country, this is a signal that the competitive landscape in Computer Science & Information Systems is dominated elsewhere.

The ranking distribution: no entry in the top 300

The most striking feature of Thailand's performance in this subject is the absence of any university in the upper reaches of the ranking. Across all five Thai institutions, none appears in the top 10, top 20, top 30, top 50, top 100, top 150, top 200, or top 300 bands. All 5 fall in the 301-and-beyond category. A median rank for Thai institutions in this subject cannot be computed: the institution at the median position has only a published rank range (701–750).

This is a sharp contrast with other subjects where Thai universities may perform better. In Computer Science & Information Systems, the country's entire cohort sits in the lower half of the global ranking. Chulalongkorn University leads at 351–400, but the remaining four institutions are spread further down, with the institution at the median position carrying only a published rank range (701–750) and no computable median rank.

Subject Rank	Institution	Country/Region	Academic Reputation	Employer Reputation	Citations	Overall Score
351-400	Chulalongkorn University	Thailand	46.2	61.6	73.4	—
601-650	Mahidol University	Thailand	40.2	53.6	72.3	—
701-750	Chiang Mai University	Thailand	36.5	53.7	70.2	—
751-850	King Mongkut's University of Technology Thonburi	Thailand	37.3	45.8	70.5	—
751-850	Thammasat University	Thailand	35.5	56.1	61.7	—

The table above lists all 5 Thai universities ranked in this subject, with their subject rank, institution name, and the component scores that QS uses to compute the overall ranking. The component scores—Academic Reputation, Employer Reputation, and Citations—are drawn from the QS 2026 subject ranking data. Note that the scores shown are those reported in the ranking; they reflect the specific methodology used for this edition.

What the scores reveal about Thailand's position

No Thai institution in this subject has a published overall score: of the 5 ranked universities, 0 have a published overall score and 5 do not. Score bands cover only institutions whose overall score was published, and none of the 5 Thai institutions has a published overall score, so no band placement can be stated for them. All 5 Thai institutions are listed without a published overall score, so they are not counted in any score band. No overall score is published for any of the 5 Thai institutions; the 35.5 shown in the table is Thammasat University's Citations component, not an overall score. The remaining four institutions likewise have no published overall score, so no comparison of their overall scores can be made.

Because no overall score is published for any of the 5 Thai institutions, no overall-score distribution can be described for them. This is a low band by global standards, reflecting relatively weak performance on the indicators QS uses—academic reputation, employer reputation, citations per paper, H-index, and international research network.

What this means for a prospective student

For a reader who has already chosen Thailand and is now deciding whether Computer Science & Information Systems is the right field, the data points to a clear conclusion: this is a subject where Thailand's universities are not globally competitive. The country's best entry, Chulalongkorn University, ranks 351–400, and no Thai institution reaches the top 300.

This does not mean the programs are without value. It does mean that if your goal is to study at a globally top-ranked department in this field, Thailand will not deliver that. The country's strength in Computer Science & Information Systems is limited: 5 ranked institutions, none in the top 300, and no computable median rank, since the institution at the median position has only a published rank range (701–750).

The gap between Chulalongkorn and the rest of the Thai cohort is worth noting. No overall score is published for any of the 5 Thai institutions, so the leader cannot be compared with the other four on overall score. This suggests that within Thailand, there is a single institution that stands out in this field, and the rest are roughly comparable to each other.

Data notes

The data in this article comes from the QS World University Rankings by Subject 2026, published by Quacquarelli Symonds (QS), with a data reference date of 2026-04-03. The rankings cover 60 subject areas and include component scores for academic reputation, employer reputation, citations per paper, H-index, and international research network. The official page is QS World University Rankings by Subject 2026

The analysis here filters the QS subject ranking for Computer Science & Information Systems by country, selecting only institutions located in Thailand. Ranks are reported as the lower bound of the band in which an institution falls (for example, 351–400 is reported as 351). No median rank is calculated across the 5 Thai institutions in this subject, because the institution at the median position has only a published rank range (701–750).

Several limitations apply. The ranking covers only institutions that QS includes; universities not ranked are not counted. The number of Thai institutions in this subject—5—is small, so the median and the distribution are sensitive to the inclusion or exclusion of a single institution. Component scores are not shown for all institutions in the available data, so the score bands are based on the overall scores that are reported. The ranking reflects the QS methodology for 2026, which weights academic reputation and employer reputation heavily; institutions with strong research output but weaker global reputational surveys may rank differently than they would under other metrics.