Yes. The Quran permits the game of the sea and its food (5:96), and the Prophet ﷺ said of the sea that its water is pure and its dead are lawful. Most scholars treat all sea animals as halal. The Hanafi school permits fish but is stricter about other sea animals, so scholars differ in detail.
La chasse en mer vous est permise, et aussi d'en manger, pour votre jouissance et celle des voyageurs. Et vous est illicite la chasse à terre tant que vous êtes en état d'Ihram. Et craignez Allah vers qui vous serez rassemblés.
Et c'est Lui qui a assujetti la mer afin que vous en mangiez une chair fraîche, et que vous en retiriez des parures que vous portez. Et tu vois les bateaux fendre la mer avec bruit, pour que vous partiez en quête de Sa grâce et afin que vous soyez reconnaissants.
Hadith
Jami' at-Tirmidhi 69Grade: Ahmad Muhammad Shakir: Sahih · Al-Albani: Sahih · Bashar Awad Maarouf: Hasan Sahih · Zubair Ali Zai: Isnaad Sahih
Abu Hurairah narrated:"A man asked Allah's Messenger 'O Messenger of Allah! We sail the seas, and we only carry a little water with us. If we use it for Wudu then we will go thirsty. So shall we perform Wudu from the (water of the) sea?' Allah's Messenger said: 'Its water is pure, and its dead are lawful
Arabic text (with chain of narrators)
حَدَّثَنَا قُتَيْبَةُ، عَنْ مَالِكٍ، ح وَحَدَّثَنَا الأَنْصَارِيُّ، إِسْحَاقُ بْنُ مُوسَى حَدَّثَنَا مَعْنٌ، حَدَّثَنَا مَالِكٌ، عَنْ صَفْوَانَ بْنِ سُلَيْمٍ، عَنْ سَعِيدِ بْنِ سَلَمَةَ، مِنْ آلِ ابْنِ الأَزْرَقِ أَنَّ الْمُغِيرَةَ بْنَ أَبِي بُرْدَةَ، وَهُوَ مِنْ بَنِي عَبْدِ الدَّارِ أَخْبَرَهُ أَنَّهُ، سَمِعَ أَبَا هُرَيْرَةَ، يَقُولُ سَأَلَ رَجُلٌ رَسُولَ اللَّهِ صلى الله عليه وسلم فَقَالَ يَا رَسُولَ اللَّهِ إِنَّا نَرْكَبُ الْبَحْرَ وَنَحْمِلُ مَعَنَا الْقَلِيلَ مِنَ الْمَاءِ فَإِنْ تَوَضَّأْنَا بِهِ عَطِشْنَا أَفَنَتَوَضَّأُ مِنْ مَاءِ الْبَحْرِ فَقَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " هُوَ الطَّهُورُ مَاؤُهُ الْحِلُّ مَيْتَتُهُ " . قَالَ وَفِي الْبَابِ عَنْ جَابِرٍ وَالْفِرَاسِيِّ . قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ . وَهُوَ قَوْلُ أَكْثَرِ الْفُقَهَاءِ مِنْ أَصْحَابِ النَّبِيِّ صلى الله عليه وسلم مِنْهُمْ أَبُو بَكْرٍ وَعُمَرُ وَابْنُ عَبَّاسٍ لَمْ يَرَوْا بَأْسًا بِمَاءِ الْبَحْرِ . وَقَدْ كَرِهَ بَعْضُ أَصْحَابِ النَّبِيِّ صلى الله عليه وسلم الْوُضُوءَ بِمَاءِ الْبَحْرِ مِنْهُمُ ابْنُ عُمَرَ وَعَبْدُ اللَّهِ بْنُ عَمْرٍو . وَقَالَ عَبْدُ اللَّهِ بْنُ عَمْرٍو هُوَ نَارٌ .
This is general information, not a fatwa. For your own situation, ask a qualified scholar.
Questions about halal and haram
Is seafood halal?
Yes. The Quran permits the game of the sea and its food (5:96), and the Prophet ﷺ said of the sea that its water is pure and its dead are lawful. Most scholars treat all sea animals as halal. The Hanafi school permits fish but is stricter about other sea animals, so scholars differ in detail.