This is the list for you if you’re looking for ideas on how to decorate your classroom or if you’re going back to school and need some bulletin board ideas. This post provides 28 ocean-themed bulletin board ideas to decorate your classroom.

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1. Dream A Little Dream Ocean Themed Bulletin Boards
This is the most adorable way if you want to focus your bulletin board around the ocean! You can use a sand dollar as the focus of your bulletin board or as an accent. The starfish would be great next to the sand dollar or other items.
2. Ocean Of Fun
Ocean of Fun Ocean Themed Bulletin Boards is a fun way to bring the ocean theme into your classroom. The bulletin board border with the life preservers is an excellent addition. The life preserver is a perfect representation of safety on the water. The fish would be great to hang on the wall or put on the bulletin board. The anchor bulletin board border would match well with the fish, too. This is an adorable set for any ocean classroom.
3. A Different ‘School’ Of Thought
These ocean-themed bulletin boards for the classroom, A Different School of Thought, are all about how important it is to respect and protect our ocean. The first bulletin board is great because you’re putting the message on a t-shirt. This is a great reminder every time someone walks by your classroom.
4. See Who In Our Class Ocean Themed Bulletin Boards
See who in our class is ocean-themed bulletin boards that will speak to your green, environmentally friendly classroom. Students from all over the world will appreciate this bulletin board, and it is a great way to show how vital the ocean is to everyone.
5. Drive Into The Park
Drive into the park is a tremendous ocean-themed bulletin board. The cars and fish work together on this board. The fish are used as the “bumper” on the vehicles because they’re the front of the vehicle. The cars are great because you can put the wheels on the fish and turn them into a water toy.
6. “We Are O-Fish-Ally.”
“We are O-Fish-ally” is a themed bulletin board great for your ocean classroom. The way they have laid out the fish, they are standing on their tails and facing the front of the board. This is a great way to greet your students and let them know what the room’s theme will be.
7. We Are “Hooked” On Our Class
We are “Hooked” on our class is a great ocean bulletin board to use in your classroom. This themed bulletin board is great because it has the students holding the fishing rods. The fish are already hooked and ready to be caught.
8. Back To School, Get To Know You
Back to School, Get to Know You is a perfect themed bulletin board. Start the year off right and get to know your students. The fish are plentiful because they’re big enough to have students write their names on them and remember who is in their class.
9. Plastic Is Not Fantastic
“Plastic is not fantastic” is a great themed bulletin board for your ocean class. This bulletin board uses plastic fish that you can keep separate or hang from the ceiling to create a mobile plastic fish. “Plastic is not fantastic” also has an alternate version that uses ocean animals instead of fish.
10. Birthday Buddies
Birthday Buddies is an excellent theme for ocean bulletin boards. The fish serve as a reminder to the children to remember their birthdays and introduce them to one another. The “Hello” are sharks who greet and welcome the students. This is a fantastic way to receive your pupils back to school each year.
11. Paper Palm Trees
These paper palm trees are great for any ocean-themed bulletin boards. They look just like real trees; only they’re made out of paper, so you can use them repeatedly. Depending on your theme, you can create a forest or an underwater scene. Color the trees to look like coral reefs, or just leave them white to be an accent to your bulletin board.
12. Ocean Theme For The Classroom
This anemone-themed bulletin board for the classroom is a great theme to use for your ocean theme. The sea anemone comes in many different colors and is easy to work with. The sea anemones are cute, so they can be a significant feature of your bulletin board, or you can use them as accents.
13. Bring In Some Awesome Ceiling Designs
These bring in some awesome ceiling designs for your bulletin board. The fish balloons are a great way to decorate the bulletin board, but they would also be a great way to decorate the hallway leading up to your classroom. This is an easy project because all you have to do is tape the fish balloons along with the ceiling. There would be no need to staple or glue them into place.
14. Boot Student Morale
Do you want to give your students more motivation? Try using “Boot Student Morale” perfect ocean-themed bulletin boards. The fish are colorful and fun to look at while motivating your students. They can be hung from the ceiling or used as an accent.
15. Celebrate Student Achievement
“Celebrate Student Achievement” is a terrific ocean-themed bulletin board idea using different sizes of balloons, starbursts, and cut-out ocean-themed fish. This can be an excellent idea for a black and white classroom theme.
16. Ocean-Themed Library
“Ocean-Themed Library” is an excellent lighthouse-themed bulletin board idea that uses differently sized starfish and sea urchins. This can be an excellent idea for a sea theme classroom.
17. Reduce, Reuse, Recycle
“Reduce, Reuse, Recycle” is a terrific ocean-themed bulletin board idea that has a manhole cover with the recycling circle in three different sizes. You could use real manhole covers instead of paper to make a children’s book about manhole covers. You could also use different sizes of starfish, sea urchins, and fish to create this idea. An excellent idea for a black and white classroom theme.
18. Ocean-Themed Door
“Ocean-themed Door” is an excellent ocean-themed bulletin board idea that uses different sizes of starfish, sea urchins, fish, and plastic bottles. This can use large and small bottles. You could use an ocean lamp to illuminate this. An excellent idea for a black and white classroom theme.
19. Birthday Board
“Birthday Board” is an excellent ocean-themed bulletin board idea that uses different sizes of starfish, sea urchins, and fish. This can use different sizes of bottle caps and chalkboard paint. You could use an ocean lamp to illuminate this. An excellent idea for a black and white classroom theme.
20. The Rainbow Fish
“The Rainbow Fish” is a tremendous ocean-themed bulletin board. The color, size, and shape of the fish are among the best ideas you can pick when decorating your classroom. You can add stars in the sky, create a rainbow at the bottom to make it looks like it’s underwater, or simply use black and white for the background.
21. Pirate Bulletin Board
A pirate-themed bulletin board includes an ocean, coconut palm trees, and pirates. You can add the letter A on the top of the board because it’s the beginning of your alphabet for customizable letters.

22. Math Ocean-Themed Bulletin Board
An excellent math bulletin board for your classroom, mainly if you teach elementary. It’s fish-themed and has various numbers from 1-to 10. The background is blue, and it looks like the fish are swimming at the bottom of the ocean sea.
23. Message In A Bottle -Themed Bulletin Board
A message in a bottle-themed board that is great for any ocean-themed classroom. You can add the letters; M and I to the bottle to make it look like an interactive bulletin board. Your students can make a wish and post it in the bottle as you show them how to make a message in a bottle.
24. Behavior Chart
A behavior Chart-themed bulletin board is great for any classroom. This interactive bulletin board has a cute minion character on it. Use it as a behavior chart to encourage your students to be suitable for the day or write down their good behaviors.
25. Beach Bulletin Board
A beach bulletin board with many exciting pictures, and maybe you can use the images for your ocean-themed classroom. It’s a great idea to hang it on your wall where you can point out various items on the board during your lesson.
26. Turtely Cool Ocean-Themed Bulletin Board
A wall-mounted ocean-themed bulletin board features turtles, sharks, and dolphins. It’s a great idea to teach your students about marine animals and their habitats.
27. Job Chart
An excellent ocean-themed job chart for your classroom. You can add the numbers 1-10 on the ocean to let your students know there are various jobs they can do when it comes to helping you during your class. The chart is creative, fun, and colorful.
28. Underwater-Themed Birthdays
A birthday board that is underwater-themed. You can use the different colored table covers to represent the different underwater sea animals, and the numbers 1 through 10 represent an age of a child.