I know a lot of readers who fancy entering a photo competition and either don’t know what’s open or don’t get around to it.  To help, here’s a list to get you started, in order of closing date.
Please let me know of any others you are aware of in the comments below as I update the page regularly. I must just add, that many of them provide feedback on your entered images and they are worth entering just to receive that.

Life Framer
Monthly calls for entries, each month with its own topic, each overseen by a world-renowned photographer or industry professional.
Monthly winners receive online exposure, $2000 in cash prizes, and feedback.  Varying costs to enter, but $80 for 12 months membership gives most entries and feedback.
At the end of the year winners are exhibited in shows in New York, Paris, Rome and Tokyo.
closes 31 October: Street Life
closes 30 November: The human body

Travel Photographer of the Year
Closes 15 October 2019
The 2019 categories are:
The eight-image portfolio category: ‘The Art of Travel
The four-image portfolio categories: ‘Endangered Planet’; ‘People & Cultures’; ‘Thrills & Adventures
The ‘TAPSA Travel Documentaries’ (The Timothy Allen Photography Scholarship Award)
The One Shot single-image categories: ‘Dusk to Dawn’; ‘Ocean, Seas, Rivers, Lakes’; ‘Street Life
The SmartShot phone/tablet category: iTravelle
Young Travel Photographer of the Year: My Journey
The overall winner will be the entrant who submits the best eight images across the four portfolio categories (one 8-image entry, or two 4-image entries)

International Landscape Photographer of the Year
Closes 15 October 2019 (22 October for late entries)

Wanderlust Photo of the Year
Closes 15 November 2019.
You may enter up to four photos in TOTAL, spread across the four categories, as you wish:  People; Wildlife; Landscape; Travel Icons.
Entry is open to amateur photographers only and is free to enter.
The prizes include a photographic trip to Texas.

Smithsonian Photo Contest 2019
Closes 30 November 2019
Enter up to 15 images in each category, to a total of 90 submissions. The categories are: The American Experience; Natural World; People; Travel; Altered Images; Mobile.

Sony World Photography Award 2020 – Open Competition
Closes 7 January 2020
Enter up to 3 images for free. Enter into any combination of the following categories: Architecture; Culture; Creative; Motion; Landscape; Natural World and Wildlife; Portraiture; Still Life; Street Photography; Travel.
All images must have been taken during 2019.

Pink Lady Food Photographer 2020
Closes 9 February 2020
There is a wide range of categories to enter (e.g. Street Food; Politics of Food; Food in the Field; …) and no limit on the number of entries you make.

The Big Picture
The Telegraph’s weekly travel photography competition, with a straightforward single theme of Travel.
Gives the chance to win a £250 Trailfinders voucher.

Landscape Photographer of the Year
CLOSED  but reopens 15 Jan – 5 Apr 2020

Lens Culture Black & White Awards
CLOSED Tuesday 30 October 2018

Emerging Talent Awards
CLOSED 10 September 2018 

Landscape Photographer of the Year
CLOSED  7 July 2018

Black & White Photographer of the Year

International Women Photographer’s Award

BJP International Photography Award

Wex Mondays 2018

Portrait of Humanity
Closed  8 January 2019

Urban Photographer of the Year
Closed 31 January 2019

Street Photography Awards 2019
Open to all types of street photography. Prizes include monetary award, exhibition in New York, publication in book, online display, other exhibitions. Entry of 5 single images or a series receive professional review.

CEWE Photo Award 2019
Closes: 31 May 2019
Prizes include holiday and photographic equipment.
You may enter up to 100 images, within any of ten categories: Landscapes; People; Nature; Sports; Architecture & Infrastructure; Food; Travel & Culture; Animals; Hobby & Leisure; Humour.

Closed 30 June 2019
Enter 1 photo for free, 8 for £10 or somewhere between. 50 winners will have their image printed and displayed at a London exhibition in September 2019.

Countryfile Photographic Competition 2018
Closed 12 July 2019
This year’s theme is ‘Beauty and the Beasts‘, calling for photographs that capture the beauty of our countryside plus the wildlife, working animals and people within it.

Hariban Award
Closed 15 July 2019 (extended from 30 June).
Professionals and amateurs are invited to submit 12 black and white photographs.
The fee to enter is 5000 yen (approximately $46 USD).
The winner will receive a trip to the ancient city of Kyoto to participate in the production of collotype prints and will be exhibited in a solo exhibition the following spring. Collotypes are printed with opaque oil-based pigment inks that can be meticulously layered to create images of unmatched richness and depth.

Open Walls Arles
Closed 1 August 2019
The British Journal of Photography is searching for up to 52 photographers to be exhibited at Galerie Huit, Arles, France in July 2020.
The theme is growth, calling for images that convey a sense of change or transition.

Sony α Instagram Competition –  Animal Portrait 
Valid for photos posted 15 May – 17 July 2019

2019 Women Photographers’ Grant
Closed 10 October 2019
Looking for new stories, or stories told in a new way.
Enter 8-20 photos, entry fee £27 (early entry fee £18)

Fujiholics Photographer of the Year