knowledge of vs knowledge about

Both 'knowledge of' and 'knowledge about' are commonly used phrases in English, and they are often interchangeable. However, 'knowledge of' is more commonly used when referring to a specific subject or field, while 'knowledge about' is more general and can be used in a broader context.

Last updated: June 16, 2026 • 3001 views

This phrase is correct and commonly used in English.

"knowledge of"

Use 'knowledge of' when referring to a specific subject or field that someone has knowledge about.

Examples:

She has a deep knowledge of physics.
His knowledge of history is impressive.
I have limited knowledge of computer programming.
The students demonstrated their knowledge of the topic.
The book provides a comprehensive knowledge of the subject.

Show examples from the web [+]

Jun 3, 2021 ... Overall, the level of HCW knowledge of IPC appears to be adequate, good, and/or high concerning standard precautions, hand hygiene, and care pertaining to ...
Jan 16, 2013 ... It could also be that "knowledge of" goes with a person or shows one's familiarity with someone or something (cf. the verb kennen in German) ...
Age-related fertility decline (ARFD) knowledge has been evaluated in the past decade, showing that there is a general knowledge of the reduction of ...
Synthesis of knowledge of extreme fire behavior: volume I for fire managers ; Type: General Technical Report ; Station: Pacific Northwest Research Station ; DOI: ...
To examine among patients with hypertension or diabetes the relationship between their functional health literacy level and their knowledge of their chronic ...
Little is known about the knowledge of and attitude to mental illness in sub-Saharan Africa. Aims: To determine the knowledge and attitudes of a ...
May 5, 2017 ... One of the most precious gifts to treasure within our families and to give to others is “the knowledge of a Savior,” or of Jesus Christ.
Jan 24, 2024 ... Basic knowledge of SQL typically includes understanding fundamental concepts such as querying databases using SELECT, INSERT, UPDATE, and ...

Alternatives:

familiarity with
understanding of
expertise in
proficiency in
awareness of

This phrase is correct and commonly used in English.

"knowledge about"

Use 'knowledge about' in a more general sense when discussing information or awareness about a topic.

Examples:

She has a lot of knowledge about different cultures.
I need more knowledge about the company before making a decision.
He shared his knowledge about the latest trends in technology.
The book provides knowledge about various historical events.
Children are curious and eager to gain knowledge about the world.

Show examples from the web [+]

This can certainly be attributed in part to a lack of knowledge about the European Union among the general public.
Normally, the receiving authorities do not have any knowledge about additional circumstances and have to rely fully on the data themselves.
One obstacle to implementing the legislation in full is that people lack information and knowledge about the current provisions.
In order to improve consumer health and safety, risk analysis should include comparative assessment, as the knowledge about alternatives is crucial for decision-makers to solve problems.
Whereas this Directive reflects current knowledge about these products;
This Directive reflects current knowledge about the products concerned.
The Commission is called upon to launch a coherent, interdisciplinary, scientific and practical research programme to bridge the huge gaps in knowledge about coexistence.
Improving knowledge about immunisation and confidence in vaccines among decision-makers, general public and health care workers remains a main goal to achieve in the fight against infectious diseases.
Farmers themselves should have sufficient knowledge about good plant protection practices.
The Commission has no reliable knowledge about this.
Certain knowledge about ECHELON, 2.
He had firsthand knowledge about SOC's dealings with al-Qaeda.
I wanted to leave Al-Qaeda, and I had inside knowledge about that organization.
The knowledge about this illness... can be useful for Germany.
He had an alarming amount of knowledge about safe houses and witnesses.
Having knowledge about something doesn't mean you have to tell our parents about it.
Grossman would have intimate knowledge about Dansby.
Our knowledge about the psyche of a comatose person is very limited.
It's common knowledge about you and Elizabeth Tyson.
Two months ago, Cal gave an investor insider knowledge about your company.

Alternatives:

information about
awareness of
understanding of
insight into
familiarity with

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knowledge of vs knowledge about

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