Siddharth in Chinese / Japanese...

シッダールト is the name Siddharth in Japanese.

Note: Because this title is entirely Japanese Katakana, it should be written by a Japanese calligrapher.

西達爾特 is the name Siddharth in Chinese (Mandarin).

悉達多 is the name Siddhartha (as in Siddhartha Gautama), the personal name for Śākyamuni.

This same Buddha is also known as “Shakyamuni Gautama,” “Gotama Buddha,” or “Tathagata.”

Siddhartha Gautama was a spiritual teacher in the northern region of the Indian subcontinent who founded Buddhism. He is generally seen by Buddhists as the Supreme Buddha (Sammāsambuddha) of known human history.

The actual meaning of this name in Chinese is the realization of all aims, or simply being prosperous.

This name is sometimes romanized from the original Sanskrit or Pali as Siddhattha (from Siddhattha Gotama), Siddharth, Siddhārtha, or Sarvāthasiddha.

Siddhārtha or Sarvāthasiddha can also be written as 悉達, 悉多, 悉多頞他, or 悉陀.

The Bodhi or 菩提 is the moment of completion in Buddhism.

It is when all things become known and you have completed your journey to enlightenment.

The reference is to the Bodhi tree where Siddhartha Gautama (the legendary man who established the Buddhist religion) achieved enlightenment. Sometimes this is referred to as “the tree of enlightenment,” but if you want the full version with the character for a tree at the end, please see the Bodhi Tree entry.

See Also:  Buddhism | Buddha | Nirvana | Enlightenment

釈迦 is the way to write Shakyamuni in Japanese.

It's just two Kanji, the first is a simplified version of the one used in Chinese for Shakyamuni, and the second one is identical to the Chinese.
This refers to the Buddha (Siddhartha Gautama, 563 BCE-483 BCE) also known as Sakyamuni and Gautama Buddha.

This has a very good meaning in Japanese but is an odd selection for a wall scroll. It appears here more for reference.

菩提樹 is the full title of the Bodhi tree (a fig tree) under which Siddhartha Gautama (the legendary man who established the Buddhist religion), achieved enlightenment.

Sometimes this is referred to as “the tree of enlightenment.” If you don't have a Bodhi tree to sit under, maybe you can achieve enlightenment under a wall scroll with this title.

喬答摩 is one of a few ways to transliterate the name Gautama, and variations such as Gautham or Gauthama into Chinese and Japanese.

This also represents the surname of the Siddhartha, the historical Buddha Gautama.

釋迦牟尼 is a transliteration of “Shakyamuni” or “Sakyamuni” in Chinese, Japanese, and old Korean.

The perceived meaning of the name is roughly translated as “Sage of the Sakyas.”
This same Buddha is also known as “Siddhartha Gautama,” “Gotama Buddha,” “Tathagata,” or simply, “The Supreme Buddha.”

Shakyamuni is the legendary man and prince who eventually established the Buddhist religion.

Note: Occasionally Romanized as “Siddhattha Gotama.”

This combination of characters is sometimes seen and used in South Korea and Japan as well (with the same meaning).

Note: 釋迦牟尼 came from the Sanskrit शाक्यमुनि and can also be romanized with diuretics as Śākyamuni.