Are there any shops open in Sydney on Christmas day?

I couldn’t find any confirmed places open, but I suspect these would be your best chance. I would suggest giving them a call first.

Sydney Airport - I understand the shops are scheduled to be open for the public.
Airport Dr, Sydney
(02) 9667 9111

Chinatown Shops
Visit Chinatown, often this part of the city is open on the 25th.

7-Elven Stores
30 Carrington Street, Sydney
(02) 9279 2460

64 Clarence Street, Sydney
(02) 9262 6008

9 Barrack Street, Sydney
(02) 9299 7744

234 George Street, Sydney
(02) 9251 6967

171 Clarence Street, Sydney
(02) 9299 5739

466 George Street, Sydney
(02) 9261 5118

465 Kent Street, Sydney
(02) 9261 1303

100 Bathurst Street (cnr Pitt & Bathurst), Sydney
(02) 9261 0745

287 Elizabeth Street, Sydney
(02) 9261 2008

585 George Street, Sydney
(02) 9262 9946

1 Bronte Road, Bondi Junction
(02) 9386 0790

110 Anzac Parade & Goodwood Street, Kensington North
(02) 9697 2592

103 - 105 Oxford Street, Darlinghurst
(02) 9380 7581

131 Anzac Parade & Todman Avenue, Kensington South
(02) 9313 8553

412 Elizabeth Street, Surrey Hills
(02) 9212 7922

308 Elizabeth Street, Surrey Hills
(02) 9212 4003

Shop 6/242 Elizabeth Street, Surrey Hills
(02) 9212 0768

Shop 1 Eddy Avenue, Central Station
(02) 9211 5252

414 Pitt Street, Haymarket
(02) 9212 2328

I would also try these places if you are stuck for essentials or the cinemas for entertainment.

IGA Stores
50 Bridge Street, Circular Quay
(02) 9221 5925

16A Hickson Road, Dawes Point
02 9247 4122

1-29 Bunn Street, Pyrmont
02 9692 9909

63 Miller Street, Pyrmont
02 9571 5199

23 Oxford Street, Darlinghurst
02 8262 5600

2 Quay Street, Haymarket
02 9211 3150

215 Glebe Point Road, Glebe
02 9660 3714

Greenwood Plaza
North Sydney
02 9957 6978

102 Bay Road, Waverton
02 9955 2827

649 Darling Street,
Rozelle, 2039
02 9555 4688

364-366 Oxford Street,
Paddington, 2021
02 9361 0836

13-21 Botany Rd,
Waterloo, 2017
02 9699 9559

47 Booth Street,
Annandale, 2038
02 9660 1646

1/95 Wellington Street,
Waterloo East, 2017
02 9698 1874

402 Catherine Street,
Lilyfield, 2040
02 9560 7082

87-89 Greenwich Road,
Greenwich, 2065
02 9438 1236

Shop 1/68 McEvoy Street,
Alexandria, 2015
02 8005 3100

259 King St,
Newtown, 2042
02 9565 5455

103-111 Willoughby Road,
Crows Nest, 2065
02 9438 2292

287-305 Military Road,
Cremorne, 2090
02 9953 2977

Cinemas
Hoyts
63 The Mall, Bankstown
(02) 9003 3800

Westfield Chatswood
Level 7, Westfield Shopping Centre, 28 Victor St, Chatswood
(02) 9003 3840

Westpoint Shopping Centre
4 Patrick St, Blacktown
(02) 9003 3810

The Entertainment Quarter, Bent St, Moore Park
(02) 9003 3870

Warringah Mall
Cnr Condamine St & Old Pittwater Rd, Brookvale
(02) 9003 3900

152 Bunnerong Road, Westfield Eastgardens
(02) 9003 3860

Westfield Penrith
Jane Street & Riley Street, Penrith
(02) 4749 5600

Broadway Shopping Centre, Greek St & Broadway Street, Broadway
02) 9003 3820

Stockland Wetherill Park Shopping Centre
561-583 Polding St, Sydney
(02) 9609 7766

Try the really touristy locations like the Harbour and The Rocks they will have the highest chance of being open to cater for tourists visiting. You will find it to be rather pricey in this area on this day.

I am a Christmas fanatic and love researching all things to do with the subject. I found the following posts that may be helpful.

Christmas lights - best streets in Sydney?
www.homely.com.au/sydney-greater-new-south-wales/questions/christmas-lights--best-streets-in-sydney

Where can you buy real Christmas trees in Sydney?
www.homely.com.au/sydney-greater-new-south-wales/questions/where-can-you-buy-real-christmas-trees-in-sydney

What are some quirky and unusual Christmas gift ideas in Sydney?www.homely.com.au/sydney-greater-new-south-wales/questions/what-are-some-quirky-and-unusual-christmas-gift-ideas-in-syd

Are there any other Christmas window displays in Sydney other than Myer and David Jones?
www.homely.com.au/sydney-greater-new-south-wales/questions/are-there-any-other-christmas-window-displays-in-sydney-othe#reply-259494

Where is the Sydney Christmas parade?
www.homely.com.au/sydney-greater-new-south-wales/questions/where-is-the-sydney-christmas-parade

Does Sydney have miniature railways?
www.homely.com.au/sydney-greater-new-south-wales/questions/does-sydney-have-miniature-railways

Where to eat this Christmas in Sydney
www.homely.com.au/sydney-greater-new-south-wales/questions/where-to-eat-this-christmas-in-sydney#question

Best places to have Christmas dinner in Sydney
www.homely.com.au/sydney-greater-new-south-wales/questions/best-places-to-have-christmas-dinner-in-sydney#question

Here is where Carols by Candlelight will be this year in Sydney
www.homely.com.au/sydney-greater-new-south-wales/questions/here-is-where-carols-by-candlelight-will-be-this-year-in-syd#question

What's happening this Christmas in Sydney?
www.homely.com.au/sydney-greater-new-south-wales/questions/whats-happening-this-christmas-in-sydney#question

What are the best Christmas recipes?
www.homely.com.au/sydney-greater-new-south-wales/questions/what-are-the-best-christmas-recipes-4#reply-259511