Lambda World is an international conference for Functional Programming lovers in Cadiz, Spain.

It is a small and cosy conference about different technologies, best practices, and methodologies related to Functional programming. No matter if you are into Haskell, Scala, Java, Kotlin, F#, Clojure or Elm, etc. If you are dealing with Functional Programming this is your place.

We look forward to checking you in!!

EVENT SCHEDULE

Lambda World's 6th edition, the second after its resurrection, will be held October 23rd - 24th 2025 in Cadiz, Spain.

Thursday will be dedicated to workshops and an opening keynote, and Friday will feature two tracks of conferences by top speakers from very diverse backgrounds and companies related to the following topics:

• AI & ML with FP
• Real World FP
• FP in Web & Mobile development
• FP Fundamentals & Theory
• Computation in functional technologies
• Emerging FP Tools & Trends

THE VENUE
Palacio de Congresos de Cadiz, Plaza de Sevilla, 11006, Cádiz, Spain.

CANCELLATION POLICY

Once paid, registration fees for Lambda World 25 are non-refundable unless the event is cancelled.

If you can no longer attend Lambda World 25, you can transfer your ticket for the same conference to another person.

Transfers can be requested for free until Friday, September 12th, 2025. A fee of 40 EUR applies to transfers requested between Saturday, September 13th, 2025, and Friday, October 3rd, 2025. The deadline for transfer requests is Friday, October 3rd, 2025.

You can request a transfer by emailing lambda@yayyay.events stating your full name, email, phone number, and position.