Speech topics, and how to pick one that works

Narrow it until it fits

"Climate change" is not a speech topic, it is a field. "Why your council's recycling scheme sends most of your plastic to landfill" is a speech topic.

A useful rule: one minute of speech carries roughly 130 words and about one point with an example. Five minutes is one argument, three supports, and a close — not a survey of a subject.

Persuasive speech topics

These take a position, so pick one you would defend in a conversation afterwards.

• Universities should teach sleep as seriously as they teach study skills.
• Public transport should be free at the point of use.
• Every student should be taught to read a financial statement.
• Social media platforms should verify age.
• Voting should be compulsory.
• Unpaid internships should be illegal.
• AI use in assessment should be disclosed, not banned.
• The four-day week should be the legal default.
• Cities should be redesigned around fifteen-minute neighbourhoods.
• Organ donation should be opt-out.

Informative speech topics

The goal is that people leave knowing something specific they did not know.

• How compound interest quietly decides who retires comfortably.
• What actually happens to clothes you put in a charity bin.
• Why bridges are designed to move.
• How a vaccine goes from lab to pharmacy.
• The reason your phone battery degrades, explained properly.
• How weather forecasting became reliable.
• What a credit score really measures.
• Why some languages have no word for blue.
• How noise-cancelling headphones work.
• What happens in the first sixty seconds of a 999 call.

Topics for a short or impromptu speech

Personal and concrete, so you can speak without preparation.

• A piece of advice you ignored and later wished you had taken.
• The most useful thing you learned outside a classroom.
• A time being wrong worked out well.
• Something everyone recommends that you think is overrated.
• The skill you would make everyone learn.
• A small change that improved your week more than it should have.
• The best thing you ever bought for under ten pounds.
• A rule you follow that nobody taught you.

Structure that people remember

Open with something concrete — a number, a scene, a question with an uncomfortable answer. Never open by announcing your topic; the audience knows why they are there.

Then: one clear claim, two or three supports, and a close that tells people what to do or think differently. The close should echo the opening, which is what makes a speech feel finished rather than stopped.

• Signpost once at the start so people can follow the shape.
• One idea per minute, maximum.
• Use a real example for every abstract claim.
• Write the last sentence out in full and learn it — endings are where speakers falter.
• Read it aloud and time it. Speeches always run longer aloud than on paper.