Informative Speech Topics

An informative speech teaches. Unlike a persuasive speech, it doesn’t try to change minds; it provides knowledge. The challenge is finding an engaging topic.

This guide is your resource for “informative speech topics.” We provide ideas and a framework to select, structure, and deliver your speech.

If you need help scripting your speech, explore our professional speech writing services.

What is an Informative Speech?

An informative speech educates an audience on a topic. The speaker acts as a teacher, presenting objective facts. The goal is audience understanding, not agreement.

The Goal: To Teach, Not Persuade

This is the key distinction. Your job is to present information clearly and objectively.

• Informative: “Today I will explain the three main causes of the 2008 financial crisis.” (Objective)
• Persuasive: “Today I will argue that deregulation was the single biggest cause of the 2008 financial crisis.” (Subjective)

While not persuasive, you must be engaging. Your main tool is logic (logos), not emotion (pathos). For more on persuasion, see our guide on motivational speech topics.

The 4 Types of Informative Speeches

Most topics fall into one of four categories:

1. Object Speeches: About a person, place, or tangible thing (e.g., “The History of the Eiffel Tower,” “How a Guitar Works”).
2. Process Speeches: A “how-to” speech that explains a sequence of steps (e.g., “How to Perform CPR,” “How Coffee is Made”).
3. Event Speeches: About something that happened (e.g., “The Eruption of Vesuvius,” “The 1969 Moon Landing”).
4. Concept Speeches: About an abstract idea, theory, or belief (e.g., “The Theory of Relativity,” “The Concept of Stoicism”).

How to Choose Your Topic in 4 Steps

A good topic is foundational. Use this 4-step process.

Analyze your audience. What do they know? What do they need to know? Your goal is to fill a knowledge gap. As guides on public speaking note, audience analysis is key. Don’t explain basics to experts or use jargon with novices.

Passion is key. If you are bored, they will be. Choose a topic you know well. Your credibility and enthusiasm are engaging.

A 5-7 minute speech is short. You cannot cover a broad topic. Narrow it.

• Broad: “Climate Change”
• Narrow: “How a 1-degree temperature rise affects coffee bean production.”
• Broad: “World War II”
• Narrow: “How the Enigma machine’s code was broken.”

Your speech needs one core idea. Your thesis is a simple sentence stating what you will teach.
Example: “Today, I will explain the three main components of a quantum computer.”

200+ Informative Speech Topics by Field

Use these ideas to find a topic.

Technology & Science Topics

For complex topics, our technical paper writers can help with research.

Health & Psychology Topics

“How To” (Process) Speech Topics

History & Culture Topics

Structuring Your Informative Speech

A good speech is organized. Your audience should always know where they are. Follow this three-part structure, based on public speaking guidelines.

1. The Introduction (10-15%)

Your intro has three jobs:

1. Get Attention (The Hook): Start with a shocking statistic, a rhetorical question, or a brief story.
2. Establish Credibility: Briefly say why you are qualified (e.g., “After studying this for three weeks…”).
3. State Your Thesis & Preview: Deliver your core message (e.g., “Today, I will explain…”).

2. The Body (75-80%)

This is the teaching part. Organize points logically:

• Chronological: For a historical event or a “how-to” process (Step 1, Step 2, Step 3).
• Topical: For a concept (e.g., “The 3 Types of…”). This is the most common.
• Spatial: For an object or place (e.g., “The lobby, the main floor, the tower…”).

Use clear transitions (“My first point is…”) to guide your audience.

3. The Conclusion (5-10%)

Your conclusion has two jobs:

1. Summarize: “In conclusion, today we learned…” Restate your main points.
2. End with a “Clincher”: Leave a lasting impression. Use a strong quote, story, or callback to your intro.

Common Informative Speech Pitfalls

Avoid these common mistakes: